Anyone stayed in a caravan or log cabin at Herston Caravan Site, Swanage?

[pepsi]

A few friends are thinking of going next May and wondered what the caravans were like - I think they are going to camp as only going for 2 nights but we might stay a week, hence I though a caravan better. If you would recommend it perhaps you could let me know which area your caravan was in and was it noisy and clean. Thanks.