I have had this set for awhile and just got around to building it. I had to register to defend this iteration of the AT-AT. I understand quite a few on here have 4483, and this version hasn't changed much, but there has been much negative feedback on this model that seems somewhat over dramatic. This version looks great! I wish it had the printed pieces of the old one, but other than that, this one looks pretty darn accurate for a non UCS model.
Compared to 10178, whose main redeeming quality is the novelty walking ability, this model is way more accurate. I know people wanted to see an AMAZING upgrade from 4483, but that one was pretty darn good to begin with. It was also released 8 years ago. (smack dab in the middle of my dark ages.) I am glad they came out with 8129. It's perfect for people who didn't want the somewhat ugly walking 10178 and weren't able or around to pick up 4483.