Does it produce dark skimmate ?
I'm still using it and it is still working as intended. Definitely not the quietest thing out there, especially after you clean it.
Speaking of cleaning, everything but the pump is super easy to take apart and clean, the only issue is the plastic screws can be worrisome in the way they tend to not want to turn, making me think I'm stripping the threads. The pump also does not allow you to easily get to the propeller. There is a thin plastic cover over the propeller that I believe is meant to come off, but the one on mine is so tight that I'm worried I'll tear it off and damage it before it comes off as intended.
Other than that and the noise, I don't have any other complaints about the skimmer.