I agree with what you said, but can you recommend some good quality and appearance of the bathtub?

I had the exact same problem. I picked out the vanity I wanted but did not think about the fact that it wasn't made to sit flush against the wall. I spent a month looking for something else, but in the end we decided to go with something shorter and have it not be against the wall. But we were going from 72" to 60" which is probably not workable in your mom's situation. I did find a lot of vanities that did have flat sides and could work in a corner, if you are willing to have the countertop fabricated. They just need to not have any trim detail on the top or bottom like the one you picked out does. I would just look at the ones without the pre-made tops. Because the pre-made top will still leave you with a slight gap because of the countertop overhang. This is an example: Avanity Modero which is sold everywhere, not just at Lowe's. The cabinet we ended up buying is an Avanity Madison which won't work for you, but I assume it is of similar quality. We are pretty happy with it. The drawers and doors have soft close but I do feel like the glides in my Ikea kitchen drawers are better quality. It is very pretty and I wanted a stained wood so I am really happy with our choice. If I had been willing to go with a painted finish, I think we might have stuck with the 72" Modero.

I do like the countertop choice. But I am also a fan of a less busy quartz countertop like this one. Still has the subtle veins in it, but it's not too busy for a bathroom. Plus I love the idea of a white vanity popping against the navy color the room. The sample in your photo could take away from the "pop" factor in my opinion. But I do think your sample is a beautiful piece of stone for sure. Good luck with your renovation!

I don't believe lighting and plumbing need to be of the same material. For a crystal lighting fixture one must have crystal faucet handles? Yes, they make crystal faucet handles but...really? We have similar shiny chrome faucets and the sconces are modern but with kind of an antiqued brushed brass finish and frosted glass and they look great. Adds warmth to the room. Go with the side sconces, the lighting is phenomenal, it eliminates the glare from overhead. We got dimmable bulbs for times when you just don't need all that light. Actually we got a mirror the width of the vanity top and the sconces were placed on the mirror where they would naturally be on the sides. Wow.