I use an Octopus skimmer on my tank, and love it.
In my opinion, SeaClones are junk. Like Yote said, it's fine for small (like his 30 gallon) or lightly stocked tanks, but the problem is that the box of the skimmer that can really only handle 30 gallons says it's suitable for up to 125 gallons. Not true. For hardly any money more (like a $25 to $50 price difference) you can get a skimmer that's many many times better.