My stay was OK. Place is nice however the lighting wasn't great and the bathroom was quite cramped. It also got very wet after a shower. Iron wasn't provided even though it was listed. Check out timing was an issue as I was told that I could keep my baggage at the place until 5pm as my flight was at 10pm. However the day before check out it was changed to 10:30am. This was real issue for me as I was travelling alone with 2 suitcases. Organising alternative storage was quite the headache. There is a baggage storage place 5 mins walk away however it's down 30 flights of stairs! So I just caught an Uber to another storage place in Navona- which was great.
The location for this place was good. Colosseum was a 10 min walk away and the Metro Cavour was just across the road (2 min walk). However to go to any of the sights, you have to change Metro lines at Termini. Supermarket was just down the road (2 min walk). The place is up about 22 stairs (for all those with big heavy suitcases).
All in all, if you're looking for something with a good location and something that won't break the budget then this is the place. In my experience though, that's all it was.
Note: if you're travelling with huge suitcases, please be aware that Cavour Metro does not have lifts, so you'll be pulling your suitcase up about 30 stairs.