We had a very nice stay at Anna Inn. Location is very convenient, only 1 minute from tube station and about 15 min walk from Colosseum. Place was sparkling clean. I was pleasantly surprised to find a box of chocolates in my room with a note for my birthday. The only down side was that the breakfast starts at 8:30am. If you want to leave early to avoid queues for Colosseum or other attractions you have to skip breakfast.