Finally got to take mine to the range today. 300 rounds later, I am convinced that it will take at least 300 more to really get used to it. Longer cartridge than the 40 I have been carrying for a decade, so my hand fits on it differently. Only real grip gripe is the bottom of the slot for the grip safety is not rounded. So my hand is a little sore from that. More recoil than the 40, but not unmanageable. Being my first 10mm, I actually thought it would kick harder. Then I started with full 10mm loads, and yes, it did kick harder, but still not bad, though I knew I was shooting something now. A bit more practice and I feel my follow up shots will be almost as fast as my 40. All in all, I am very pleased with it, and am glad that they FINALLY came out with one. Now I just have to wait on my 220 grain MP mold to come in, and I can really start having fun.