i already got about 100mL of very wet skimmate, i am still playing around with dialing it as i want to let it break in fully, and also i dont want to skim too much too fast and shock my tank, so i prefer to take it slow and give everything time to adjust. also keep in mind that my tank is very lightly stocked (as i was running skimmerless) and very lightly fed. i've also been using many means of nutrient export, so there may not even be that much to skim.
it is very easy to adjust the skimmer, just tighten or loosen the air screw (by hand) and it will either foam up wetter or drier as a result.
I can not hear the skimmer whatsoever as it is inside my cabinet.