I was pretty suprised to see the little guy in my local Toymaster shop. I didn't think he was out until August. So here are my pictures:
Firstly here is the box
It gives the dimensions of Mr AT-AT as 34cm height 34cm wide. The box itself is 38x48x7cm so the AT-AT is about as tall and wide as the box.
Inside the box are two instruction books and eight bags of parts plus a really cool double sided poster.
It is quite a complex build with lots of fiddly 'technic' type pieces to support and allow movement of its component parts. Be prepared for sore fingers! The first part built is the internal body anatomy and the neck. It really doesn't look like anything much at this stage. The legs are next to be built and I built all four at the same time simultaneously rather than building one then starting over with the instructions again. The final part is the external body 'skin' and his head.
The main body and top of the head opens. The minifigures sit inside. The legs can be bent simultaneously but it doesn't stand stable enough to lift one leg.
There are two spring loaded bricks which hold the 'shooters' under the head.
There are five minifigures with this set:
I'm not convinced about the Snow Troopers 'skirts' they look a bit funny to me, especially from behind, but I guess it's hard to replicate the uniform. Maybe if they were plastic as opposed to fabric but perhaps it's harder to bend or manufacture.
I didn't have the original (I got into Lego too late) so have nothing to compare him to but I've very happy with this set.
As I've run out of shelving he may have to share the cat basket with Obi Bengal!