We stayed at Natasha's place for 4 nights while our house was redecorated. We were 2 adults and a baby who recently started walking. The house itself was lovely - very spacious living room and dining area and large kitchen. We ended up using only one of the two bedrooms (the larger one) and found it quite fitting for our needs. We visited during the winter months and the house is defintely well-isolated and warm (even too warm upstairs, we found it kind of tricky adjusting the temperature to comfortable levels).
The house is located in a developing neighborhood. It has several gems in it, such as the Windmill Farm and Victoria Park, and it's a short walk from the city centre, which we found convenient. However, personally I wouldn't feel safe walking around the area late at night by myself.
Overall I think it's good value on the money and a nice place to accomodate a small family visiting Bristol.