My husband and I spent 3 nights in the Colosseo/ Monti Design Suite during early May. As others have said, it is small but it was extremely comfortable. The small balcony was extremely pleasant space to enjoy breakfast and an afternoon glass of wine. The location is in the heart of Monti, a stones throw from all the historic sites and plenty of restaurants and bars.
Laura was extremely friendly and helpful, making all the arrangements for arrival and departure very easy.
I have no hesitation in recommending this property for short term stays.