This is a lovely apartment and I really enjoyed my long (2 month) stay here! Perfect location in the heart of the Castro, but on a side street so feels very residential and mostly quiet (sometimes you can hear party-goers passing by on weekend nights, but overall I didn't find the noise troublesome at all). The apartment is very well-appointed and decorated without being cluttered. It felt like the hosts really put some thought into making this apartment, which technically isn't that big, feel bigger than it is because of how well things are arranged. It's a perfect size for a single person or couple. The living room is spacious and the couch is great! The work area was great to have, and I used it every day when working remotely. There is a lot of storage space, with closets both in the bedroom and the living room. The kitchen isn't big, but has basically everything you need. There is also a lovely shared patio outside that I didn't use nearly enough.
My one suggestion might be to stock up on a few extra things for the kitchen - it has all the basic appliances, but for people who cook a lot, a few extra spatulas and things like a vegetable peeler might be nice. But that's just a tiny nit :)
Scott and Roman live upstairs - they're very kind and welcoming people, and very responsive. I loved my stay here and would be happy to come again!