I have the IMEX one (BB):

http://www.artistichobbies.com/prodd...?prod=TAG13021 (but I got mine from Splatterpaintball up north here in Canada)
check out the youtube video: http://www.youtube.com/watch?v=e5JVnMO1z2I

The one at RCTant.de is slightly different as it has the upgraded lower hull, and was too rich for my blood (Canadian dollar sucks, and shipping to me is a lot), plus I like dealing with Erik and supporting the Canadian shops.

I have had mine for about 2 months. Great tank. Only one small issue and that was the barrel holder cracked when I unknowingly jammed a BB and kept trying to fire, but Erik@Imex is getting me all fixed up.

Tank is worth it for the price. And it looks really really cool.