Great location, plenty of room for groups of 2-4 people, we walked just about everywhere and used the Metro twice. Do not count on the wifi though, not sure if we had bad luck but turning it off/on nothing really seemed to get the speed anywhere worth using. Using your phone as a hotspot is about the same / a little better even.
If you're there the place we found the most interesting to visit was Castel Sant' Angelo, the other places we went (especially Vatican Museum & St Peter) were too busy to really enjoy what you're looking at / experiencing.
We also did a Bike tour of 4,5 hours which lead us to some actual peaceful and beautiful spot near/in rome which I would highly recommend people doing. Was the best value for money experience we had while visiting.