Hi, I bought a Pro-tec cover 3 years ago for my new (as it was then) Avondale Argente 650/6. It was fine but holes appeared in the cover on the top of the van after a year or two. Now this may have been because of birds etc. I now own a Elddis Crusader Cyclone and have bought a cover from Specialised Covers. It appears excellent. It fits brilliantly and doesn't leak like the other one. The A frame cover is definately better as it can be velcroed to the main cover giving a good seal and has a "bag" which fits over the tow hitch. Wheel covers were purchased too- excellent- stops tyres perishing from sunlight. So far, I prefer the Specialised Cover rather than Pro Tec.