Overall it was a great experience. This hotel takes care of the details. Great lobby, helpful (English fluent) staff, deluxe room was spacious and comfortable, very good sunlight and sound proofing (we faced the rear and away from the street - asked for it), twice a day cleaning service. Breakfast is a but pricey (22 EUR per person) but you get a very nice breakfast in a great setting with a great service. The hotel provides free shuttle to Spagna every 30 minutes. This compensates for the hotel being a bit far from central attraction. Near by are Trams 3 and 19 which we used to get to the vatican. Borghese park borders the hotel and is great for a morning walk run.
Overall, the hotel was exactly what we expected. It was expensive but it was worth it.