What a great place :-)
I stayed in Giacomo's studio for two weeks (I was working remotely, so I actually spent a LOT of time in the place), and it couldn't have been better. The studio has everything you need, is bright & sunny, wifi works like a charm, the kitchen is very well-equipped, lots of closet space...
I also really enjoyed the neighborhood, which is very residential, lots of cafés, bars, supermarkets, public transport stops, but very few tourists ;-) However, it also only takes a leisurely 20 minutes to walk into Trastevere, so you get the best of both worlds.
Communication with Giacomo was brilliant; he always answered immediately, and even the remote check-in was swift and easy.
Thanks very much again, Giacomo!