I dont know this site but have spent many a happy week at camping La Massane, its a simple site but good value. We have only ever been there out of season(September) and can imagine it ( Argeles) could be hell in August but that goes for France anyway. Its a lovely area with a superb coastline towards Spain, and plenty of off road cycling if thats of interest. Fishermen sell thier catch off the boats in the morning and some of the fish are still alive. The town is very nice and has good market on Friday, you will see I like it.
Dave