Massimo's place is really great and atmospheric. It's easy to get to and you feel really special up in the rafters. Comfy bed, clean bathroom and great decoration.
Our only issue was contacting our host about check in procedure. We messaged him a day or so prior to arrival to enquire and did not hear back. Being backpackers once we got to Bologna we had no internet access to find his answer. It was cold and raining for a hour before we tracked down some wifi to find a message from him where the keys were.
Besides that, w loved the place and its in a great central area to all that you would want to see in Bologna.