We stayed two nights at the Al Gran Veliero B&B this October. We wanted a cheap hotel, close to the Stazione Termini and this place met our needs just fine. This is not a situation for a traveler who wants consistent support by a hotel staff, because there is none! We had to tell them when we made our reservation what time we expected to arrive. We had to look carefully for the building because there is no sign outside. We buzzed to get in and a woman was in the office. She took our money and explained the key system (five different keys for the different entrances and interior doors.) She took us to our rooms and that was the last we saw of anyone affiliated with the place.
The rooms were clean and orderly, with a little fridge and a flat screen tv. The bathroom was tiny....we had to step into the shower to close the door to the bathroom. It too was spotlessly clean. A previous review mentioned the towels; granted they were mismatched and obviously air-dryed, but for the price, I'm not complaining!
The location was ideal for us, a five minute walk from the station. We were also able to walk to the Colosseum in about 15 minutes.
The breakfast was provided at a restaurant around the corner; we were able to have a cappucino and brioche to start our days. It's not an unlimited breakfast buffet, but it was sufficient to get us started. We were also close to a couple of nice restaurants where we were able to get dinner after our long days of touring around.
All in all, I would stay here again. The one inconvenience was that we were unable to leave our luggage there for the 1/2 day we were touring around before our 14:00 train. We had to pay to leave them at the train station and it would have been nice to have been able to leave them at the hotel, as is usual. Except for that, I found this to be a perfectly acceptable lodging solution for the budget traveler.