Perfect little apartment!
LOCATION: can't wish for better. 10-15 min walking distance to Vatican, Trastevere, Piazza Navona, Pantheon. The apartment is very well isolated from the street noises. An elevator is a huge plus after a day of walking. The Coop supermarket and a patisserie are just around the corner, to get some croissants, cheese, prosciutto, and blood orange juice.
BED: a decent memory-foam mattress. Pillows were not very comfortable, so we ended up taking large pillows from the couch and wrapping them in t-shirts instead of pillowcases. Great night sleep!
SHOWER: good pressure, gas-heated hot water. Bathroom is clean and easy to get used to.
WI-FI: worked well, good speed.
HEATING/COOLING: we didn't use the heat. The AC in the living room is quick to turn on and cool the entire place in minutes.