I had one last November and I'm so happy I did.
Yes, it did hurt and I wasn't able to pick up my kids for about a month. It needs to heal properly and also you're still pretty sore for about a month too. They over tighten that area because they know it will loosen up some afterwards.
I had 2 kids and 2 c-sections and I didn't have alot of loose skin, just that little pooch. That is now replaced by a totally flat stomach and I couldn't be happier!