On the recommendations from this forum, we went out with Jerry 10 days ago. There were 21 of us, it cost £10 per adult and £5 per child. We had a fantastic day. The boat (Dejavue) was just right - plenty of shade, but plenty of sunbathing room also. His wife started working in the kitchen as soon as we boarded, and worked solidly until around 1pm, when she then produced by far the best lunch we have ever had on a boat (I would post a picture of the food, but dont know how to!)
There were at least 11 salad style dishes, a huge dish of chicken and one of kebabs. He also cooked the fish we had caught. Prior to the meal, we were offered garlic bread (the garlic butter had chilli in it and was delicious) and for afternoon tea, chocolate cake.
Jerry was attentive to us all for the whole day - he took time to chat with the children, learn our names and helped the kids to fish. He was informative and willing to do whatever we wanted to do. He also had a thorough price list pinned up which meant we knew exactly what we were paying as we went along. We could not fault our day, which lasted from 10 am until 6 pm. We would certainly recommend Jerry, and will be booking him again for August.