We have been using this brand since our son was 2 months old, and love them.  No disasters in the pool, and we get to avoid icky disposable diapers.  My only complaint is that the sizes are weirdly small.  My son is large, but not fat, and he needed the 18 month trunks when he was 9 months old.  We had bought the smaller size and could barely get it up one thigh.