We stayed here for just one night and despite arriving very late still got a warm welcome at reception. The hotel interior is just beautiful with Art Deco floors, doors etc. Because we were just using the hotel as a quick stop off we really didn't get chance to make the most of the hotel but had a quick look round the lovely vintage artefacts that are in various public areas along with big comfy sofas. There is a museum in the hotel too but we didn't get chance to look at unfortunately. The room we had was not particularly big but had lovely on suite and we paid less than £50 for a nights sat with breakfast so was incredible value for Rome. Breakfast was lovely with a great choice at a large buffet table. A waiter brought hot drinks to your table and was very friendly.
One tip I would give is make sure you have a good idea on a good map of where the hotel is. We got of at the new metro stop recommended on the hotel web site but then went in the wrong direction which is not much fun when you are tired. You need to use the subway B1 getting off at Agnese/Annibaliano when you come out on to the street you are in an area where lots of streets meet. If the subway is to the back of you turn left then take the next left and then keep going straight up the street then straight up the nex street and you will come to the hotel.