This is an excellent tool that reduces hand fatigue and increases precision. It arrived incomplete.The M5 wing nut that locks the front plate was not included in the shipment.The 6mm hose fitting with an 1/8npt or similar rear thread was not included. The foot pedal was different than our other dispensers as a 3 pin connector rather than a 3.5mm stereo plug so it's not interchangeable despite the same appearance of the enclosure.We paid more for this than the parts alone and were expecting a completed assembly that was ready go to.We'll provide updates on performance if there is anything noteworthy. We've used the version with delrin internals rather than the aluminum internals used in this assembly.It's easy to hold this entire assembly at the dispenser near the tip if you use a shorter mixer so it's more like holding a pencil. Especially if you get a hanger that takes some of the weight off.