Very close to the Pantheon!! We loved the location! It's on the 4th floor (we call it the 5th floor in America), but there IS an elevator (although it is small). There a grocery store almost across the street for staples and a wonderful Pizza Rustica around the corner that was full of locals grabbing their takeaway pizza and supli. The washer and dryer are great, but be sure to ask for instruction on both. (They are different systems than we have in the US, and, for example, there is a water tank in the dryer that needs to be emptied after each cycle. Not a big deal, but just not something I would have instinctively known.)
The beds were very comfy! The shower is small but worked okay for us. Overall, we really enjoyed our visit.