GOOD: Communication was great. Tony made sure to let me know that he would be away when I arrived and made all the arrangements so that someone could let me in and show me around. When I arrived everything was perfect, Kyle showed me around and answered my questions. The apartment is very bright and warm, and it doesn't have noise from outside. There is plenty of space, the bed is comfy, and the kitchen is complete. During my stay the toilet started leaking but Tony arranged someone to go fix it on the same day, he was super responsive and quick!
COULD BE BETTER: The apartment itself is very good, however, it is also very noisy on windy days, due to the bathroom window ceiling banging up and down. The bathroom was not super clean. The toilet was clean but the shower area had multiple used dental floss hanging around. The location is good, however, it is not on 20th and Valencia as the title says. This may be irrelevant in other places, but it does make a big difference in a city like San Francisco where the scenario can completely change from one street to another. It's 2 and a half blocks away from Valencia, so not suuper nice, and I didn't feel super safe walking around later in the evening. That might be just me though, but I do think that the title could reflect the location better :)
Overall, I enjoyed my stay and I think it's good value for the money. Thank you, Tony and Kyle, for everything!