I built it last August and it was good, although Igor makes no bones about his models being for experienced builders.
I recommend pinning everything together, otherwise the wing joints will fail. I used one 1/8 dia. brass wire in each wing butt joint and its quite strong despite the ungainly appearance of WK.
I put together some progress photos here, and a couple of finished photos.
http://groups.msn.com/ModelersAndHobbyForum/whiteknightampspaceshipone.msnw
I also rebuilt the landing gear using brass wire and aluminum tube. The resin is too brittle to trust not breaking.