Mark's apartment is 100% as advertised and I had a fantastic stay overall. This was my first time using Airbnb for a private room vs. entire place and it did not disappoint.
The apartment is located in the city's Mission neighborhood with great access to transport, grocery stores, restaurants, gyms/exercise studios, bars, and Dolores park.
Mark is a wonderful host. He enjoys opening his home to guests and goes above and beyond to ensure that they have a positive experience. He entertains relatively frequently and is happy to have you partake or opt out depending on your preference. House rules are quite detailed and as described, so I would highly recommend checking those out before booking to make sure that Mark's place is what you'd be looking for (ex. not bringing friends back to the apartment). For the most part, these guidelines seemed to be common courtesies and also helped establish clear expectations that allowed the space to be shared more harmoniously.
Mark's home has a great feel -- sparklingly clean and well appointed with anything you'd need (ex. laundry in the apartment, WiFi, comfortable bedding, fantastic kitchen, etc.). The twin room is small but set up in a way that makes it feel larger than it is. (He also has another Master Bedroom with full ensuite bathroom listed on Airbnb that is more spacious if you're prepared to pay a bit more.) There's plenty of space to put away personal items, even for an extended stay, so that the room doesn't feel cluttered. The room also includes a small desk and TV so that you can work or unwind in privacy. The roof deck is a wonderful space to sit and admire panoramic views of the city in a relaxed, private setting. The SF rental market is a bit out of control these days, but Mark's place is definitely priced pretty well for the quality of the space and the AMAZING board. I wasn't sure at first what would be included in the board, but it exceeded every expectation -- gourmet meals when Mark was cooking and a full fridge and pantry stocked for other meals and snacks, including items that Mark is open to tailoring towards your preference.
Overall I'd highly recommend.