What a nice job you did! I think your "before" kitchen was actually quite charming, but I can see the huge leap ahead in functionality you gained with your remodel. I'm almost in the same situation as you but in reverse, doing a bathroom before the kitchen in a "long, harrowing" process (those words describe my situation precisely, so I feel for you). The things I would say to look at transferring might be the following:

• Countertop durability is still important but a little different. You may have heated styling implements that need to be kept away from heat-sensitive materials like quartz. You may have bathroom chemicals with makeup and grooming supplies that could etch or stain marble and some granites. Soapstone is not a bad choice for a bathroom, but most people want more flair for the bathroom countertops. Just make sure you're prepared to care for whatever you put in.
• A lot of vanities are shorter than the typical kitchen countertop heights. If you are tall, consider doing a custom countertop for your bathroom to make reaching easy. The idea behind shorter bathroom vanities is to make them dual-use for adults and children, but if you have a bathroom dedicated to adults, it is fine to raise the counters higher.
• You'll want a decent waterproofing system if you're tiling a shower or bath. Schluter is usually the way to go. Try to find someone who is formally trained and experienced using Schluter waterproofing systems.
• Most sinks these days for bathrooms are trending toward the vessel-type sinks. You need to be careful when selecting a sink like this or any sink in the bathroom that it is deep enough to prevent splashing out. Having a faucet mounted inside the sink is ideal for that, but if you prefer the freestanding vessel look, that may not be realistic.

That's probably enough to get you started. If you have specific questions, you might want to post them here or separately for more input. Happy remodeling!

Thank you, Silverlined!

Interestingly, the vanity that came with my bathroom (over 20 years ago) is too tall - I think the owner that put it in was tall - I'm 5'3", and while I'm used to it, it would be nice if it were a few inches shorter.

I'm not a fan of the vessel sinks - they look like they'd be harder to keep clean (and I do my own cleaning) plus, they make it *seem* like they give you more counterspace without really doing so. Plus, I'm not such a modern/trendy kind of person.

Really good advice about waterproofing!

I did post a few specific questions in the last few weeks... one was about the possibility of a pocket door, but didn't get any responses to those. I guess I thought maybe general questions were more likely to get responses - but I'm still trying to find out how to best utilize this site for bathroom advice. I know it was super helpful in designing my kitchen!

I hate our vessel sink and will be replacing it with an integral one when the time comes. Water splashes outside it, and soapy water from the bar soap escapes its dish and pools behind the sink.

Our countertop also has almost no overhang, so water has dripped down and ruined the top of the cabinet below the sink. I will be going with more overhang next time.

We have a pocket door on our half bath adjacent to the mudroom; it is fine (and really the only option given the limited space) but a little annoying to operate compared to a standard door. Pocket door locks are also harder to use because the controls have to sit below the face of the door.

Thank you, Isaac.

Good to hear confirmation about vessel sinks.

I've had pocket doors in my 2nd bathroom and bedroom since I moved in over 20 years ago, and love them. That said, I live alone and rarely close those doors, so could be different with heavy use, though the new bath is/will be attached to the main bedroom - so not likely to be closed very often.