This is absolutely as cheap as you can expect. It was definitely worth of money, because we did not expect much. We stayed there four nights and believe me: that location gave so much value for doing things, because we walked from there everywhere. You can eat at Trastevere area where food is good. So, my short review:
Cleanliness: basic. Nothing fancy, but it was worth of money.
Service: he just speaks Italian, so don't expect any service. It does not matter though.
Location: absolutely fantastic. You can walk everywhere (Vatican, Colosseum, etc) from there.
Value: well, it was really cheap and I'm troubled to see, that there are peoples who complain these hotel. They knew, that this place is very cheap so they shouldn't expect much!
Room: in order. No air condition, traffic was noisy, but we slept there quite good though. And I left part of my money there and nothing was missing. Some electrical stuff was almost dangerous, but who cares? We did not. Oh, and that fridge, who somebody said, that it won't close... It works, but you just have to use fridge key! ;)
Sleep quality: Traffic is very noisy, but otherwise okay.
Breakfast: There is not any. Get breakfast from the food store, which is in the next block.
Overall: very cheap room for four days and it was worth it.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC