This is a beautiful little apartment with access to a roof terrace, which we didn't end up using much. Too much exciting stuff going on in the streets. We were there in November-December and the nights were cool. The central heating functions very well.
I have one cautionary comment: Due to its location and exposure to the several small streets meeting in front of the apartment, it was very noisy, both day and night: voices, cars, scooters, not a constant hum but loud intermittent bursts of sound. We were there for four weeks, so it might not be so much of an issue if you're planning to stay only for a few days. At any rate, bring ear plugs. I would not have survived without them.
The location is fantastic, Clara very friendly and helpful.