After researching it a month and then ordering one, then waiting another month to get it, I could not be more disappointed. Bought a California edition (made in Israel) DE in .44 mag (as that is the only way to get it here), but also bought .50 AE 6" barrel and a .50 10" barrel. Bought 4 magazines in each caliber, too. Well over $2,000 at this point. Also bought some "bulk" .50 ammo from Cheaper than Dirt at $200 ($1 round), 80 rounds from Underwood, plus cheaper and expensive .44 mag ammo, too. Bought and installed a Hogue rubber grip the day I got it, which was a real PITA. Went to the range yesterday. It would never cycle, no matter which ammo or caliber. The Hogue grip has tabs on the inside that were pressing up against the magazine, and as I understand it, the magazine must be "free floating" for the gun to cycle. So, went home and removed it and reinstalled the factory grip. Went to the range again today. With the cheaper (not cheap) ammo in either caliber, it absolutely would not cycle. Would eject the spent casing, but would close before the next round would chamber. Using the Underwood .50 ammo, finally on the 4th magazine I got an entire magazine of 7 rounds to cycle. But, I had to muscle the thing very hard and stiff for it to work. Relax even a tiny bit and it wouldn't cycle. Almost have to lean into it like a full auto rifle. Going to buy some ammo directly from Magnum Research and see if that works. If not, I'm going to hire an instructor at the range and ask him to shoot it and see if it makes a difference, and if so, teach me. Meanwhile, I developed a heck of a flinch when shooting my G29 right after. Took me 50 rounds to fix it. The 29 feels like a child's toy after shooting the DE. I think I just wasted over $2000. This thing is freakin unreliable. I would never trust it in a defense situation. Forget size, weight, capacity, etc., it's just too unreliable. I will say the recoil is really not that bad. The sound is really not bad, either, more like a big boom than a harsh crack. Will it break in? Maybe that's part of the problem. Any suggestions?