I have had this for 2 or so weeks now and it does skim once it goes through the break-in process. The problem is that it easily pops off from the suction cups (have to glue it, but then I won't be able to change them). They don't stay suctioned to the glass very well and no matter how I try, I can't get all the air to squeeze out. Also, the water level has to be "just so", or it will foam too much, or not foam enough. I am having to monitor my water level daily now because it drops my level by at least an inch each day!Update: I've had this for half a year or so now and it works, but the flow adjuster just spins around fully now when turning it. I have to have the water level "just so" or it sucks up all my water and I have to empty frequently. It works, but after many many moths I am still forced to tinker with it on an all too regular basis :(