I'll offer another recommendation for the red dot sights from Primary Arms, and for the Burris Fastfire III.
I'll also offer a general thought about red dot pricing. I am not a fan of any sights in the $250 - $375 range. As discussed in this thread, there are some very solid options for under $250 including the mount, and some of these choices are a very good value. But for more money, I think it is really worthwhile to save up a bit and look for a premium model on sale. For a bit over $400, you can look for an entry level model from Aimpoint, Trijicon, or Leupold on sale. And while these sights are expensive, I think they really are the most rugged and reliable.
So my thinking is to either look for good value, or spend more money and go for top grade stuff.