My friends and I had a great time in Valentina's apartment. Check-in was very flexibel, part of us arrived early and could leave the luggage in the apt. even before noon. Valentina is an amazing airbnb host, she and her colleagues were extremely welcoming, giving us lots of amazing insider tips and lots of great recommendations (to eat/to see/to do). When we had any questions, Valentina responded immediately (before and during our stay) and was always super nice.
The apartment itself is very spacious, with a large terasse great for outdoor dining + a comfortable living room area. The kitchen was very well equipped with everything we needed. We were 4 people and had more than enough room.
The location of the apt. was perfect for us, in walking distance to many attractions (e.g. the colosseum), with lots of great places to eat + have a drink in the lively Monti area. Public transport around the area takes you anywhere else you need to go to (airport/the other side of the river if you don't want to walk).
Would definitely stay there again and can recommend Valentina's apt. to anyone looking for a home away from home in Rome.