A nice, big apartment right in the heart of Rome. Our host was very friendly and a good communicator. The A/C worked well on some brutally hot summer days. The wifi worked well. The neighborhood is surprisingly quiet, even though it's so central. The beds are comfy, and the living room / dining room space is quite large--a nice place to relax after a long day walking around the city. There are many restaurants and bars within a block or two of the flat, some tourist traps, but several offering solid Roman food. There is also a taxi stand just a few hundred meters from the apartment which was handy on very hot days.
Only a few potential cons: the kitchen is very sparsely equipped. We love to eat out when in Rome, but if you are planning on some real cooking, you will probably be dissatisfied. Also, when the A/C is running, you need to dump out a drip bucket each day. It's not a big job (5 minutes, max), but it can be a bit heavy and messy. The couch bed was a bit of mystery. One of our daughters was going to use it, but it seems to be shaped a bit like a bowl with highpoint at the head and foot.
Overall a nice apartment if you need a big space.