Vanni's apartment is the best I have been to so far. It's hard to find a place like this, especially because of the 'homely' vibe it gives you as soon as you enter.
It is lovely furnished and -being a real home- makes it hard not to feel comfortable in it. You won't need to go out at 10 pm to urgently buy something you need: everything is already there.
And if you want to have a day of rest you won't get bored: a very special selection of books covers every wall of the flat. Highly recommended