in fact, i finished the 3D puzzle a month ago. i'm only posting about it because i have nothing else to post about.
it was surprisingly easy for me. i just sat down one sunday afternoon and worked on it. i just kept putting piece after piece after piece. the hard part was the last piece, the screw. it got stuck and it took me 10 minutes to fit it.
i can finish a 3D puzzle in less than an hour but i can't finish a simple 1000 piece 2D puzzle, because of the fact that i don't have time. i've spent about 6 hours overall on that thing... 400 pieces left.