Absolutely love this place. It has a really nice Roman authenticity through the entrance, but once you enter the hotel its totally modern and very charming. My wife and I stayed in the Superior room and it was way beyond what we expected. It's really nicely put away and doesn't lack any amenities.
It's location is amazing, you can walk to Trevi, Colosseum and a bunch of other sites. Right within a 2 minutes walking distance are some amazing restaurants, bars, cafes and gelato spots, you can also get some of the cheapest souvenirs in Rome within a 4 minute walk. In the street nearby there's a pop up market with some really nice authentic Italian fashion pieces and fresh fruits and veggies.
Honestly, I'll be staying here for all of my future Rome visits. We highly recommend staying here, it's really the best of all worlds when it comes to visiting Rome.