I don't have experience with the newest versions. I tested there scopes a couple years ago, and it was enough for me not to care about there new versions.
Sorry if in late here but I bought one from bradis, not sure if it's a gen 2 or 3, but for the price you get a lot of features. Seems to hold up pretty well. I don't think it's as tough as an aimpoint but it's held well for me at the range or banging around in the woods.
I bought an HD7 Gen3 about a month ago and am very pleased with it. It has held zero after numerous trips to the range. I wouldn't pay MSRP for it, but if you can find a deal on it for under $200, I would jump on it. Plainfield Shooting Supplies had one a few weeks back, but couldn't say if it is still there.