So I've owned quite a few pistol red dots from various manufactures and Holosun really punches way above their price point. I sold my RMRs and moved to Holosun for better dot quality, sight picture, and easy battery compartment access. I own the EPS Carry and now the EPS full size both in 6 MOA. The EPS is very easy to install and has one of the better red dot qualities you'll find out there. The interface is very easy to use, +/- change dot brightness, push both to turn off, hold - to lock the controls. Easy. At this point I have approximately 300 rounds on this EPS, however on my Holosun dots in general I have around 10,000 rounds and they have been 100% reliable. Very impressed with the EPS and it really does fit the role for a do everything style red dot. It's big enough to put your foot on the gas and shoot fast on steel, while also carrying very comfortably.