What size tank do you want to put this on?
IMHO they are worth the $ they charge but they should not be used on tanks larger than 55 gal and should not be compaired to skimmers that are twice the price.
Way to many times people will post to your question that the seaclone sucks or the seaclone is inefficent and then they will suggest a $200 skimmer.
IMO for the price range it is equil in performance to the origonal Red Sea Prizm skimmer. And yes I have had both and found both to work just fine on 55 or smaller size tanks. Shoot for a few weeks I had the prizm on my 80 gal tank.