The terrible, horrible, no good, very bad fit.
This resin model kit has some truly appalling joins. I mean seriously. The unintentional gap where the neck meets the body is almost as wide as the intentionally made hole for the wings! WOWZA. There are also huge gaps where the wings meet the body, and along either side of the body between the wings and tail. Just awful. A bit of hot water was able to warp the two body halves into fitting together well, but the rest were beyond the powers of hot water. Milliput required. MUCH Milliput.
EDIT: GW did send me a replacement for the warped pieces, their customer service is super helpful. It's still not a great fit, so be prepared for that if you purchase this kit. They are super helpful though, and their support was much appreciated! Buy with confidence that they'll make it right.