I liked this place a lot. It's in a nice part of Rome, with cool shops and restaurants (mind you, you could say that about most places in Rome)-- but this one is within walking distance of the Vatican, the Colosseum, etc, and near a bus stop (2 minutes) and a metro station (10 minutes) for anyone who wants to travel further afield-- but the rooms are in the interior of the building, so they're nice and quiet (incidentally, the building has the biggest street doors I've ever seen: they're like something out of Game of Thrones).
There are rooms on the first and third floors: mine was fine, though a couple might have found it a bit of a squeeze-- but it's Rome! you're just going to be using the room for sleeping-- with a fridge (there's a supermarket on the other side of the street)-- there's even a little safe.
There's Wi-Fi, and a standard Italian hotel breakfast: coffee, toast, yoghurt and croissants; but, as often happens in Italy, the best part of the experience was the people. Ovidio was really pleasant and helpful, printing stuff for me and happy to provide advice and local tips
Any negatives? Well, there are always a couple. The shower really isn't very big, and I found it hard (but not impossible) to hit that sweet spot between too hot and too cold. Also, the room was a bit dim: I think they used 40W bulbs-- but overall this was a fine place, teriffic value for a room in the centre of one of the greatest cities in the world.