I stayed in Forus Inn with two girlfriends and it was a good deal for a room for 3 (1x king size bed and 1x single bed). The guy at reception was a nice guy with many tips for restaurants as well as sight seeing places in Rome.
This hotel is somewhere in the middle of Collosseo and Termini main station. You can take Metro Station Via Cavour or Termini. But for a group of 3 I would recommend taxi for the spots nearby as the average price per person is almost the same and u get more comfort.
I was really impressed by the bathroom, as with that price I would never expect that cleanliness. breakfast was good, different choices, but you have to eat in the room, so it´s a bit inconvenienent as breakfast will be delivered at a chosen time, so u have to wake up at the time u chose. But it does not really matter as we were there for travel, not for sleep :-). Elevator is as others in Rome a bit old and small.
The price is mid-ranged (there are many many cheaper options), but for sure it was worth the money as the service and room quality were really good.
From the outside, it looks like a normal app house but be ready to be surprised by that great place.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC