Aeh personal preference lah.. for me i took CSII because it comes with 2 years warranty. And Teflon base coating no need to wax liao.. then once in a while if I'm lazy i will drive down (I stay bedok lah.. so can) let them wash and vaccume.. 10 dollars nia.. after washing they still apply a layer of CSII perservant. The GM, Sherine is also a club member.. hee... maybe you tell her u got this info from the club can get discount..