We really recommend Carlo's place. It's near Stazione Centrale, which is very convenient. Sunny day? I definitely recommend to go to the city centre by walk. 20 minutes approx.
Communication with Carlo and his wife was excellent. Our train was cancelled, therefore we arrived late. It wasn't a problem. As host they are very comprehensive.
Besides, the flat in general has everything you need for your stay. Just be aware that there's no space for cooking, however you have oven/microwave and fridge.
Thanks Carlo for your hospitality!