Pretty much everyone is happy with these skimmers. I have one and it would not have been my first choice of skimmers. However, mine works fine as far as skimming.
As far as the constant bubbles being shot into the display, this is true, but mainly through the break in period, if there are bubbles being shot in after this time, then there is a dry to wet seal leak. On mine I have a problem with the o-ring on the intake control leaking air and slowly reducing the amount of water on the back side of the intake tube. All I do is check this every few days and adjust the flow for a few minutes and then put the setting back.
It also has a consumer report article about the extensive amount of noise coming from the impeller. This is true, it is a noisy unit. Most of the noise is only from the way it injects bubbles into the water flow.
Once again, it would not have been my first choice.
Clint