I just purchased this skimmer two days ago and my initial reaction is this skimmer is of up most quality. The Bubble Master pump is extremely quiet and appears to be very well built. The collection cup fits snugly into the body with and is sealed with an o-ring. I don't like the drain configuration though. I wish they had used an elbow like my Bubble Magus had. The bubble density in the skimmer chamber is very dense and the adjustment of the water level is very easy with the gate valve. The gate valve allows for very small adjustments which lead to a finely tuned skimmer. After the 1st night, the skimmer was pulling skimmate. It also was NOT producing any micro bubbles in the sump or tank. I will report back after a few weeks of operation!