I stayed in Ian's apartment for 4 nights in Jan 2015. The room is nice, comfortable and well furnished.
The only problem, as others have remarked, is that it is quite wet; this is apparently quite common in Maltese traditional houses at ground floor. However, the air conditioning system helps to reduce this problem while you stay at home.
The position is almost perfect, in a very nice old neighbourhood just outside Valletta; Valletta city center is just 5 minutes by walk. There are a lot of parkings in the area and some shops and supermarket. It is moreover very easy to reach by bus from the airport.
Ian is a very kind host, super fast in answering. His girlfriend Anna welcomed us providing a lot of helpful information on places to see and restaurants.
To sum of, a very good bnb, perfect position, good value for money, very kind host, I definetely recommend it!