I am going to be very honest with my review because if previous guests had bothered to make an honest review about the flat our story perhaps would've been different. I am going to split the review in 2:
THE GOOD
The flat is beautiful, sparkling clean, very very well located in Monti and very quiet and private.
In the kitchen we found everything we needed to cook except salt.
Vincenzo was a very nice host, very warm and he checked us in at midnight since we let him know in advance before booking that our flight from London would arrive to Fiumicino at 10pm. He did this without charging us extra money as most hosts in Rome do, which was really nice of him and we did appreciate.
Very nice trattoria for an emergency pizza at yr doorstep
Very comfy bed
THE BAD
The flat is advertised as for 4 people and it shouldn't be. There's a bed, which was very nice, and then there's this terrible sofa-bed with a 2 cm thick mattress that broke my friend's back where you cannot realistically sleep on. It's a real torture and you will be feeling every bar and part of the structure of the sofa. Then there were only 2 individual pillows so not sure how that can suit 4 people.
The ad says there's shampoo and there isn't any. There's handwash liquid soap. If you are happy to use that as shower gel and shampoo, then you will be fine.
Advert says breakfast included. What we got for a 2 nights stay was 1 litre of very nice pear juice and 2 small packed croissants. No coffee, no milk, no bread or fruit... nothing, only the one litre of very nice pear juice and the 2 small croissants. Now, since this is a very nice gesture, it's hugely misleading and I don't think this can go as "Breakfast provided", when not even coffee, the most basic thing in a breakfast is provided.
So all in all, if you are only 1 or 2 people so you dont need the sofa-bed, bring your own shampoo, shower gel and salt and don't drink coffee or need to have breakfast, this place is really amazing and I can't fault anything.