I needed a hotel in this part of San Francisco since my son just moved there, I was traveling by myself and safety is always a priority when I do so, there aren't many hotels in this part of the city and The Carl Hotel was one, I read reviews here and on Yelp and also asked my son to check it out for me. I have nothing but positive things to say, I found it to be in a nice clean neighborhood, yes the muni stops by and it is noisy but thats also a plus if you need to get around to other parts of SF, the noise didn't bother me and it doesn't run on the weekends so it was very quiet then, the bus still runs so if you need to get around you still have that convenience. The room was small, more like a European hotel but big enough for me. The bed was very comfortable and the room was clean. There is a small fridge and a microwave. There isn't a bathtub, but the shower always had hot water. I already booked this hotel for my next visit and will use this hotel as long as my son lives in this neighborhood. You are within walking distance of Golden Gate Park, which is fantastic, there are shops and coffee shops all close by I think The Carl Hotel is a fantastic value!!!