Would be comfortable for a long term stay as kitchen is well equipped, laundry is readily available for use, there is a good division of indoor space and there is an outdoor space. Entry is safe and secure and checking in and out was easy. Location is ideal if you have a car or plan on taking public transit to see the tourist sites. The area is more safe and quiet than downtown, but still close to many conveniences. The cleaning could have been a bit more thorough as the bathroom was a bit dusty and a couple pieces of the kitchenware we used were not completely clean. Noise transferred early in the day from upstairs which wasn't a huge issue for me but might be if you are a light sleeper. Overall, very good value for a stay in SF!