Here are my comments. Miele Combi Steam/Convection Oven - great choice. I would stay away from ANYTHING Thermador makes - expensive to repair, frequent repairs and poor customer service. I don't have experience with Electrolux, but the micro/oven combo I like is the GE Profile Advantium upper with a 30" convection lower (Combo is about $4,000). That Advantium oven does a MUCH better job than a regular microwave. Would not buy Viking, period, for the same reasons as Thermidor above. Viking took over the old Amana refrigerator plant. They are a great marketing company, but a poor product and service company. I'd suggest a KitchenAid 22CF panel-ready French-door cabinet depth R/F or possibly a GE Profile similar model if you're not going to put in a built-in refrigerator (SubZ et al). Miele dishwashers are great as are Bosch and KitchenAid, who now have the same type of filter system as Miele and Bosch do (they got rid of the built-in garbage disposals which make dishwashers much noisier). BlueStar Rangetop is fine. Personally I like Capital Culinarian - 25K Btu on 5 of the 6 burners and I think a 12K Btu simmer burner. Getting back to your oven situation, i'm in a remodel now where I'm putting in a 6-burner Capital Culinarian all-gas range with a Miele XXL Combi-Steam oven. No need for a 30" convection wall oven or a built-in microwave. Our microwave (which we just use to reheat beverages primarily) will be an under cabinet GE Profile model (cheap - $350). the Combi-Steam oven does a much better job of re-heating leftovers than microwaves do and it's great for steaming, roasting, baking bread, etc.

We have an oven/microwave combo (KitchenAid). If I could redo my kitchen I might do that part differently. I did not know when I designed my kitchen last year that microwave drawers were a thing. If I had known I might have chosen that with a built in oven instead. I do not dislike our oven/microwave however I do have concerns about the microwave breaking. The fan was actually broken when we installed it, and we had to get it repaired. So if something happens to it, I know we will have to pull the entire unit out to get it fixed which is more of a pain than just fixing a microwave. The other issue I have with it is that microwave is a little higher than I would like. We installed the unit 1.5" higher than they recommend (so I could have a 15" drawer below) and since I'm only 5'3" the microwave is a little bit high for me. Even installing it at suggested height would still leave it higher than the ideal. A drawer would be a nicer height most likely. I definitely like having a separate gas rangetop and built in oven. There are many reasons I want them separate, so a range was never an option for me. But I probably won't combine the oven and microwave again if I did another kitchen.

I just removed a 17 yr old KitchenAid oven/microwave combo. The convection oven was great until recently, but the attached microwave died after 2 years. I'd advise to get separate appliances, not attached combo appliances. If one of the attached appliances fails, it's an expensive repair. We've been using countertop microwaves for the last 15 years. I replaced the oven with a GE Twin Flex double oven. I had a shelf built above it & a new outlet installed, and put a new countertop Panasonic mw there. So glad to get the microwave off my counters! . I looked at the small convection/mw speed ovens -- many here love them. But I wasn't sure how much ventilation space we'd have for one. Plus if the Panasonic fizzles out after a couple of years as microwaves are prone to do, it will be easy to plug in a new one. Here's the Twin Flex, two ovens in the space of a single oven. So far, it's been terrific. I'll post a picture of my set up tomorrow, even though the mw isn't trimmed out yet.

I have a single 30” wall oven and a 30” speed oven/microwave in a corner in my kitchen. They are installed in a regular wall oven cabinet that is 31.25” wide by 24” deep. I have 8 ft. ceilings so I think the cabinet is 90” tall. The cabinet is all the way back into the corner. The cabinet maker did make angled upper and lower cabinets on each side of the oven cabinet so I do not have a ”huge amount of wasted space. I don’t have trouble getting things in or out of the oven or the microwave. Here is an overall picture of my kitchen And a closer picture of the oven and side cabinets The cabinet above the oven is great The upper and lower cabinets on each side of the oven cabinet hold a lot too but for some reason the pictures i just took of the insides of those cabinets wont load. The corner ovens work well for me. My kitchen is only 11x12 so you don't have to have a huge kitchen to have corner ovens. I like my current kitchen layout much more than its previous version