I have heard of these but have only seen turtle wax products. I am sure they dont last more then a week but are they good for boosting current wax job?
For OTC, I've had good results with Mothers Refections® spray wax and with RainX FastWax. Not that either will restore a neglected finish, mind you, but for quick touch ups that last longer than QD's, I think both are pretty good. Both can also be used on either wet or dry surfaces.
(Both come out rather thick, too, so it's better to spray into the cloth than on the paint IMO.)