Never heard of them, and there's nothing on the oceanic site. Got a link to a description?

Berlin skimmers are okay, I suppose, for small systems, but they are WAY overated by the manufacturer in terms of capacity. 300 gallons skimmed effectively by one of these things? Probably not. On the plus side, there are lots of them floating around for sale used. They're made out of cheap plastic and prone to breakage, though, and not reputed to be easy to clean.