First and foremost, AMAZING location. For the money, probably the best value in SF. Really close walking distance to Polk bars, restaurants and shops, the waterfront, Lombard, and even North Beach and the Marina. Unit is small, but comfortable for two people. Bathroom is a little on the small side and the kitchen is too (though we didn’t need to use it).
As the listing says, access is a bit tough, would not recommend The Studio for those who may have trouble with steep, narrow stairs, but it was no problem for us. Very safe, secure and quiet stay.
DEFINITELY consider this for your stay in SF!