I have one. It's very easy to shoot quickly, weighs nigh on nothing, i can get 8 pots + a halo from a full 4.5k fill in a 1.1. The only thing I can find even remotely bad, is the amount of trigger bounce you can get. It's a very short & squat li'l bugger & the sheer lack of size took some getting used to, but you can play soooo tight it's unreal. It could definately do with a better trigger (personal preference, can't wait to get mine through. Cheers Skeet !!) & it's a pig to set the trigger up nicely, but you've only got to do it the once. The mode selection & adjustment is a breeze. Hardly any noticable difference to shoot between the Proto/DM4/DM5. They all feel the same to me, hence the Proto. I figured that I may as well save a few bob on a DM5 & get a virtually identical gun.