Raveevarn was an awesome host--super friendly and awesome with communication. She designed the building and it's clear that she takes a lot of pride in sharing it with others. The apartment itself is modern, well designed, and well cared for.
The building is very centrally located in SOMA close to some great restaurants, bars, and breweries. And it's a short walk to the BART/Muni and even downtown or the Mission are walkable distances away. As others have mentioned, there are some down-on-their-luck folks in the neighbourhood, but they keep to themselves and it's no different than staying downtown near Union Square or in the Mission in that regard.
I would definitely recommend Raveevarn's place for anyone travelling to SF and we'll definitely be back if she'll host us again!