It is the second time I stayed at Sam’s. I would definitely recommend you to stay there. It is only 20 minutes walk from the main atractions of the city. The beds are really comfy and the WiFi works excellent if you plan to work there!
The only thing is that for you to go the city center, you will need to cross a street full of homeless people. Still I believe it is pretty safe during the day.
Besides that, everything was great!
Sam always answered me if I had any question and solved any minor issue pretty fast.