I run a Nyos 120 and while it’s a great skimmer there are many other skimmers that do just as good of a job for a little more than half the price.
Also, when you compare it to similarly priced skimmers, you’ll find that it is lacking in features.
Other skimmers at this price point have DC pumps, float stops, neck cleaners, etc...
If I could go with something else then I’d spend the extra $100 on a Reef Octopus Regal 150 int.
At $500 it comes with an External Varios 2 DC pump that allows you to adjust and maximize both air draw and water draw for the best control. Also because it’s externalit makes servicing the pump way easier and opens up more room inside the skimmer body for bubble volume. Flat valve to turn it off if the skimmer cup gets full.