I use one too, you can check my thread as well.
I do like it a lot, but I'm not sure it is as effective as some of the other real upper end stuff. This is not to imply it isn't, as I've never owned anything else. However I did see an Octopus Pro 250 in use recently and I began to wonder. However, it is extremely easy to set and clean, doesn't use propietary pumps, and will accept any number of mag drives or similar to power it. Plus it has a small footprint for in sump operation.
My only "problem" thus far is that the venturi does clog slowly, and sometimes you don't realize it until skimmer efficiency has been greatly reduced.