I got mine this morning and it was a real "Holy Crap!" moment when I removed him from the packaging for the first time and saw just how incredible the figure is.
The cliche about things never looking the same in pictures or video footage as they do in person is overused in this hobby but it's certainly applicable with IM.
The paintjob is out of this world, the engineering is fantastic and even if it's not quite true 1:6 the scale and bulk of the piece is jawdropping....I stood my Mark I & II in front of them and it really hit home just how impressive an achievement this is by HT.
The only slight niggle was that one of the hand repulsors was flickering straight away so I'm guessing it's a crappy battery so no big deal although I hate loosening those tiny screws on the battery covers.
The easiest 10/10 I've ever given any of my purchases.
EDIT