I purchased the glas.tr nano slim for my iphone 5s and it looks great. However, I feel as though the oleophobic coating slowly wore out, and now the fingerprints are easily noticeable. I don't know if its because I got a defective one or if their oleophobic coating is really weak, but comparing it to my friend's iphone 5 with his BodyGuardz Pure, his definitely has a strong coating. Attached is a picture. What do you glas.tr nano slim owners think? Is yours this weak or is this normal? Should I request an RMA for a replacement or try another company, and if so which one? Thanks!