I have one on my current setup. Took a a couple of weeks to get dialed in so you have to be patient. The micro bubbles will go away eventually. All that said it's a nice little skimmer that does it's job.
I have a 17 gallon DT with a 10 gallon sump. I bought the pls50 to maximize the space as my diy stand is the length and width of the DT. The skimmer is small enough that I was able to create a decent fuge area in the sump.