Angled walls show the draftsman doesn't really know good design.

you have a huge entry foyer with steps and hall that are wasted space.

The powder room is barely wide enough to enter. You'll have to enter the room scooting by the sink and then once fully in close the door.

The walk in closets are too small to be walk in closets. Hanging clothes need 2' of space and you need 3' of space for walking inside a WiC.

The kitchen is huge but unworkable as the island is a barrier between the sink and the fridge and you'll need roller skates to continually go back and forth between the work stations.

How many sitting rooms do you need? What it appears to be is the draftsman couldn't figure out how to design a well designed house so put together the tetris boxes like he/she did and called it a sitting room

Jack and Jill bathrooms are a nightmare.

To use that laundry room which is way too small, you'll have to close the door to the room while in it just to sort laundry.

And how will they exhaust the dryer since code specifies 25' max and that's if it's a straight run.

And to bring food from the garage into the house means carrying it through the living room.

I always post this too. Anything in bold is not good:

The best houses orient the public rooms towards the south for the best passive solar heating and cooling

The best houses are L, U, T, H, or I shaped.

The best houses are only one to two rooms deep. And covered lanai, porches, garages, etc count as rooms in this case.

The best houses make sure kitchens have natural light, meaning windows so one doesn't have to have lighting 24/7 to use the kitchen. (And no, dining areas with windows 10' or more from the kitchen will not allow for natural light.)

The best houses make sure all public rooms and bedrooms have windows on at least two walls.

The best houses do not if possible put mechanical rooms, pantries or closets on outside walls

The best houses do not have diagonal interior walls making for odd spaces.

The best houses keep public and private spaces separate.

The best houses do not have you walk through the work zone of the kitchen to bring laundry to the laundry room.

The best houses do not have the mudroom go through any of the work zones of the kitchen.

The best houses do not use the kitchen as a hallway to any other rooms.

The best houses do not put toilets or toilet rooms up against bedroom walls or public areas.

The best houses do not have walk in closets too small to stand inside.

The best houses do not have roofs that are overly large, and dominate the exterior of the house.

The best houses do not have stick on exterior materials only on the front façade.

The best houses have an organizing “spine” so it’s easy to determine how to get from room to room in the house and what makes sense. Meaning they don’t have meandering circulation paths.

And added from Architectrunnerguy:

-The best houses enrich their owners souls.

-The best houses are timeless.

-The best houses incorporate the intangibles of good design.

-The best houses have strong organizational concepts.

-The best houses have owners who understand what good design is….and isn’t.

-The best houses are shaped in response to the Sun.

-The best houses have all its parts in good proportion to each other and to the whole.

-The best houses enhance the street.

-The best houses balance function, aesthetics and construction.

-The best houses recognize there are always design tradeoffs.

-The best houses break some “rules”.

-The best houses are a joy to live in.

The first thing my husband and I look at is how far do we have to carry groceries from the garage to the kitchen. This floor plan is as mentioned above, too far. We also have pets so the stove needs to be near the sink for carrying boiling water to sink from stove. it appears the entry foyer and hallway is as big as the living room. Why are living rooms designed now with no walls for furniture and the tv most times has to go over the fireplace? We want our tv at eye level.

Is this an existing house?

Overall the space isn't bad for a young family. My concerns, if you wanted to stay there long term, are the steps from foyer to living room and what looks like several steps from garage into mudroom.

Pretend you are in the backyard of this house and realize you need to use the bathroom. Long trek around the house to go through front of garage, through garage and into the house. Or you can go through the dining room patio door, perhaps dirty from working in the yard, through the house to get to a bathroom. We have this same problem with our current home and it is a Pain.

The mudroom entrance from the garage should enter into the kitchen, not the living room -- you want to be able to get to the laundry and garage without going through the living room, IMO (are those laundry machines in the mudroom, as well as upstairs?)......you're more likely to be carrying packages, or be dirty and muddy when you enter that way. It makes sense for the foyer to open to the living room, but not the garage entrance (nor the laundry). I like the corner for the patio (I presume) between the living and dining rooms, but it looks odd that there's a window on one wall (living room) and not on the other (dining room).

I think the "sitting room " looks like wasted space with minimal size and windows, so I would have liked to have seen it be a pantry extension from the kitchen, rather than a weird extra room off the foyer. I would also recommend at least a powder room on the main floor that isn't off the mudroom if you have dinner parties and guests over. I suspect you wouldn't want them walking through your laundry and mud room (usually the least organized and attractive rooms in the house) to use the facilities.

I'm not wild about the weird bathroom thing on the second floor, with 2 lavatories opening to a shared toilet/tub area. I would have dispensed with all those extra doors and just make a larger bathroom with a door into each bedroom.

Honestly, I don’t like much about it at all, xcept that the sitting room would be a fine home office/study/library.

I suspect it is a narrow and not-very-deep lot, right?

A few positives: I like that the kitchen/dining area is around the corner from the living room. Full Open Concept is not for the way I cook.

The large entry and large open space upstairs might very well be nice -- good space for a comfy reading chair, bookshelves, artwork -- very appealing to me.

The jack & jill bath upstairs works well for two decently civilized kids.

Laundry room upstairs -- never had one but sure would like it!

There are a few tweaks I would make if possible, but won't go into that unless the OP suggests it could be useful.