As a location it is really close to the airport. Also, you can take any bus to any place in Malta. It is almost in the city center. Very close to Valletta and other tourist attractions.
Varner is a very nice host, willing to help you any time. He offered us guidance and also many tips of what places are really worth visiting. He even offered to take us to the airport because it was raining and it was a bit cold.
The house is really old and it is a bit cold during the night, but he gave us extra blankets. He is honest regarding the description of the house. It is probably the best you can get with a small amount of money.
If you are not very pretentious and you are an adaptable person, then it is a place to stay for a few nights.
In Romania we have a word "the man blesses the place" and Varner is the man who can make you fell like "at home far away from home".