I'm happy with them and have ordered many times. You will, however, get some mixed reviews. If you looking for CUC you might also want to check out reefclearners.org
All I can say is 'itsy bitsy teeny weeny, snails and crabs that dont do much cleany'.
I've had mixed experiences with them. More bad than good. But they've always made good....eventually
I have heard a lot of bad reviews...like shipping the wrong items, dead animals, failure to replace dead animals with live ones (or somethimes even the correct ones!!)
Personally I could go to reefcleaners.org. I have done so once before and received excellent customer service.