Pro's: Close to St. Peters & Tiber, spacious nicely decorated Ikea style apartment, and plenty of toilet paper.
Con's: Slower wifi, some noise (but easily remedied with earplugs at night--as it only affected our sleep), and lots of fine print. While we didn't get fined, we didn't feel that welcome with signs telling us if we got make-up on a towel we'd be fined 15 euro and if we washed said towel we'd be fined another 30 euro. There was a booklet with all the fines posted.
Despite the con's, we would have given the place 5 stars, but only gave it 3 stars for the following reason:
The only reason we booked this particular apartment was because, prior to booking, we were told 4 bikes would be available for our use. Only to find once we got there that they had forgotten and gave 2 of the 4 bikes to another apartment. We were told that we could rent bikes at any nearby bike rental shop if we needed 2 more. They did not offer any rate reduction or to rent the bikes for us. I did not want to spend our first night arguing or looking for another place, but we would have booked something less expensive had we known in advance.