Not a bad little hotel, an easy walk from the main station, 5 mins from the nearest metro (the cleanest underground station i have ever been to and really good value for getting around) 10 mins walk from the sights. It IS undergoing some work at the moment, but it didnt effect us at all, work didnt start until after 9am and stopped by 5pm, we WERE on the opposite side of the hotel though and i can understand it may be worse if you were right next to the work.
The bedroom was tiny, we had a small overnight case and if we had had anything bigger we wouldnt have been able to move, that said, it was newly decorated, the bed was more comfortable than my one at home, and it had everything you need. The bathroom was also very small but all new and the shower was fab (although my other half at over 6 foot tall suffered a few knocked elbows as he tried to wash his hair), all in all though it was fine for 3 or 4 nights - any longer and you may get cabin fever.
One thing i would suggest is requesting a room on the back of the hotel, ours was on the front and the road noise was quite bad, it is on a major road with buses, cars bikes and trams every few minutes (and you know how the Italians love to beep their horns) and the view wasnt worth the noise. It didnt stop us sleeping but some light sleepers may find it a problem, mind you if the road doesnt wake you up the usual inconsiderate shouting Germans will, so its not really worth worrying about!! Breakfast was great, fresh pastries and rolls from the bakery every morning, cereals and hot drinks and juice - we filled up at breakfast and didnt really need lunch! There are not really any places to eat near the hotel, but within a 10 min walk you can find some.
In the main you cant go wrong, its good value for money, the rooms though small were new, clean and had everything you need, the front desk is manned 24/7, good breakfast and location for the sights and rail links. The only down point is its location within Rome, this is not a particuly nice area, its the poorest and most industrial part of the city, very very dirty and covered in graffiti, we were a little nervous walking from Termini to the hotel (which we had no problems at all finding by the way!!) and i imagine in high season there will be a lot of pick pockets and gypsies around the station, but although we were a bit edgy at first we had no problems at all, everyone was friendly enough and once you are used to the look of the place it doesnt seem so bad, there are also a lot of tourists about so you are not alone. At the end of the day you want a hotel next to the Trevi Fountain then you will pay 3 times the price of this one and it probably wont be in such a nice condition. I would certainly go back to this hotel, once they finish the work i think it will be a little gem.