Vanni's house is lovely. It is a traditional home, with lovely big, cool rooms, a rustic kitchen and a few outdoor areas set on different levels. The bathroom is separate from the main house, which I imagine would be very typical on Stromboli, but may be good to know beforehand.
The view is breathtaking and we loved watching the world go by from one of the outdoor areas. We travelled with our baby and our toddler, and we really enjoyed having the extra space in the enclosed yard for them to play in.
The location is great. A few steps up to the main square and a short walk down to the beach.
The house was slightly less well equipped than we were expecting, as the washing machine wasn't connected and the wifi wasn't working. Check with Vanni if these things are important to you. The local café has wifi, but we found it to be very unreliable, and it wasn't convenient for us to go there when we needed to do business in the middle of the night in the Australian time zone.
Although the wifi issue was inconvenient, it made us slow down and get on to island time without any distractions!
I would recommend Vanni's house to a small family or small group. Vanni was also very helpful with ferry information.