I hardly recommend Helen's house for your AirBNB experience. She is a lovely and very welcoming host, and it's easy to feel like home with her. It's also easy to communicate with her and she is always willing to help you.
The room was perfect, with a confortable double bed and some wine, teas or chocolates to welcome you. The location was ideal, since it's 15-20 min to the center of Bristol but far enough to be in a peaceful neighbourhood (you'll have a good rest). So, this is a great place to be when visiting Bristol.