This location was absolutely perfect. Check in was simple and although we had one issue while here, Frederica took care of it very quickly and our stay was great.
We were able to all sites multiple times thanks to staying in this location - the pantheon, Trevi, Vatican, Spanish steps, Navona. We took a cab to the forum/colosseum and walked back. We also took a bus to the Vatican once because we were running late for our tour, very easy to catch the bus on the main road.
Around the corner from this place, on the way to Navona, there are a few great places to eat, quintessentially Rome. We also ate in front of the pantheon twice. Only mistake we made was eating at Forum Hotel (knew it was risky being touristy; I really do not recommend eating there at all -- save your money!)
The shower is as other guests described (low ceiling, little tight), but I wouldn't let this stop you front booking -- my friend is 6'6" and while he had to take baths instead of showers, he said he would still stay here again because you absolutely cannot beat this location. Enjoy!