I've had mine running for about 4 months at this point.
It does a great job pulling waste from my system, but is the most finicky and sensitive skimmer i have dealt with.
Getting it dialed in was a hassle. bubbles popping low, you come back 20 minutes later and water is pouring out of the top. This went on for at least a week.
I like the idea of a down draft skimmer. But be warned; when you have water flying out of a Mag 9 and smashing into a pile of bio-balls it's going to make a bit of noise.
On a positive note it's extremely easy to clean and has a very small and "adaptable" foot print. Once you finally get it tuned and running it's a great skimmer. I would buy another (but nor for more than the $100 i paid for it)