Overall I'm satisfied with this product but I would like to see some re-engineering for:

1) The clasp (that attaches to the shirt hem/tails) doesn't hold firmly and I'd repeatedly find that it became unhooked.  I even looked up YouTube videos to make sure I wasn't doing it wrong (there were no instructions provided with the product) but, alas, the problem persisted.

2) I'd like some way to adjust the length of the straps between the loop and the clasp.  I could see this being problematic for people who are short or tall.

With that said, I'd recommend this product considering the price is reasonable, even if it's not perfectly designed.