I had a fantastic time staying here this summer. Claudio was incredibly helpful via email, even before we arrived in Rome. When we got to Rome, Claudio met us outside the house at a time we found convenient. The location was even better than I had expected, taking only 5 minutes by foot to reach Piazza Navona, and a little bit longer to reach the Pantheon. The street where the house is situated also had everything we needed, such as a supermarket, restaurants, ice-cream shops and a lovely Irish pub.
Inside, Claudio showed us around, gave us maps, numbers for taxis, tourist advice etc. and a basket full of snacks (which was a lovely touch!)
The flat was absolutely spotless and had everything we needed, from towels to plug adapters to a washing machine and much needed air conditioning. The beds were comfortable and the rooms weren't too hot at night, so I slept consistently well. The kitchen was very useful and everything worked well. The bathroom was clean and functioning, however, the shower is a bit small (but generally fine for normal sized people!)
Overall I can't really think of any way to criticise the flat, Claudio or my overall Rome experience. Claudio was a friendly, charismatic and helpful host and I highly recommend staying here.