We were originally booked to stay at one of the other Leonardi properties-Hotel Viminale- but due to a flood in our room, we were booked here, Viminale paid for and calleda a cab--and we couldn't have been happier! We stayed athe Gaillia for five days. The location is great for exploring.
The room was large enough for two-nice big marble bathroom. It was clean and all the amenities were readily restocked. There was a small minibar, and the hotel didn't mind if you used the fridge to store your own wine, fruit, chees, etc.. Handy as there is a supermarket around the corner.
I have read a few of the other reviews--we found the staff to be extremely accomodating. They even helped with our Italian, and train timetables.
We left Rome for Capri, and the hotel stored our luggage for us for 4 days then had it transferred back to the Hotel Viminale for us easily-it was waiting in our room upon our return. Breakfast is no better, no worse than any continential I've had in Italy, Britiain, France or elsewhere.
It is a charming-slightly quirky hotel. We would definitely stay there again! It seems that people too often expect exactly what they have at home in other places--travel is an adventure, and while maybe not 4 star if you're expecting posh--we found nothing, nothing to complain about.