I was pleasantly surprised. I thought I’d be throwing my money away. Weekly 30 minute lessons do little for my son in an in-one-ear-and-out-the-other kind of way. He’s 9 and learns best with constant repetition. But his skill improved dramatically and the advice on wall exits has stayed with him. Butterfly was his worst stroke, but he’s no longer embarrassed to work on his fly in practice. He was .3 seconds away from a JO time in the IM and now he’s got it for sure. Thanks.