We stayed 4 nights here,with a baby. So our days are limited to around 8pm bedtime. The location is perfect for an active city sightseeing vacation, with lots of good places for a lazy breakfast nearby, then you head out for the day and return to the same neighborhood only now filled with locals for a cozy evening dinner. The ambience of Trastevere is thoroughly enjoyable. I'm sure we could have found an even more central place to stay, but never once did we feel that need.
We ended up walking a lot of the time, not using the public transportation much. Because we enjoy walking around seeing all the smaller details. But connections with both busses and trams seemed good.
The room itself was a good base, and access ok. It's not a leisure hotel room, more like a short term apartment. Note it's not wheelchair accessible. Housekeeping seemed good, but due to the road outside you have to expect some noise and cleanliness accordingly. The Air-condition did its job, which was a big relief with our 1year old. A baby cot was ready for us on check in, as requested in advance.
The biggest positive we experienced was Max, who greeted us and was available for questions and help all the time using WhatsApp. And the free soft drinks, water and occasional beer in the fridge was a very kind gesture.
All in all a good value for money for city sightseeing if you don't need the afternoon pool time. There's a high probability we'll be back if we go back to Rome for more sightseeing.