hi any advice or comments about la union please let me know we are booked for september

It is rated second of the two main camping sites in Salou. Sanguli is the other one at the other end of Salou towards Cambrils. See here for 11 reviews:-
http://www.tripadvisor.co.uk/Hotel_Review-g562814-d1055867-Reviews-Camping_La_Union-Salou_Costa_Dorada_Province_of_Tarragona_Catalonia.html