I stayed for 12 days at Valerio and Manuel's place. They are great hosts! The room was clean and tidy, with a small fridge for personal use and a comfortable bed. Valerio and Manuel went out of their way to make the stay comfortable - not stopping at providing fresh fruit and water, but even including buying my preferred cereal for breakfast :-) They're also both fun to talk to and be around. Finally, the location of the apartment is perfect. It's almost at the centre of Bologna, yet situated in a small street so it's not too noisy.

I definitely recommend staying at Valerio and Manuel's if you're going to Bologna.