Here's my review of the M10-545, I also have a M10-22 that is fun.Check out this link
M10 5.45 AK74 Rifle Side Folder
Nobody has mentioned them and they seem to be a new appearance on the AK market. Seen goods reviews from a couple places though and at an all around respectable price for a non"sporterized" one.
AK47 Talk: M10-545 Review Part 1: First Impressions
AK47 Talk: M10-545 Review Part 2: Range Report
Here is another blogger that got a lemon, apparently though Atlantic has only had a few returns on the M10 series and it far less than the rate they have on Century rifles. I do think they are a notch up from WASRs, but only just so. The real value in the M10 is the accessories like the Hogue grip, RPK rear, Draco gas block (which to do something like that normally is a big bucks Bolton or Krebs block install).
AK47 Talk: Tale of the Lemon M10-545
5.45 will stay cheap for awhile as long as 7N6 stays. That will be probably at least a year or two. After it dries up, there should be enough rifles in country and Russian imports will still be allowed to offer commercial Russian (Wolf, Bear, etc.) loads at the same prices as 7.62x39 and 5.56mm. Also you have Hornady loading a V-Max 5.45, which is my home defense round. Maybe somebody domestic will also pick them up (although I think Hornady uses Russian cases so it isn't pure U.S. made). AK74 mags right now are getting really dicey, I've been forced to pick up a few Tapcos for range use, but I still have some good sanitized Russian plum mags, a ((10)), and nice E Germans. If I didn't have those already I'd be a in a little bit of a jam if I got a 5.45 rifle today and getting quality mags.