I haven't torn into the parts bags yet, but from what I've seen of the saucer and leg bits, the engineering on this kit is impressive. The slot and tab idea for how the legs attach to the hull is solid - I had the basic leg pieces glued up with some CA and snapped in after maybe ten minutes. The saucer halves are BIG, and fit together nicely - although as previously noted by Dave Metzner and others, this isn't a model that lends itself to easily lifting the top off like the PL one. And it shouldn't be, the peg system seems to register the parts nicely and they will need to be glued.
The surfaces on my hull look fantastic for such large pieces. Now as you all get these you will likely see a couple of sink holes on the underside of the saucer, where the locating pins are, but these are extremely easy to cover and smooth over so if you feel you need to whine about these, save your breath and don't do it on these forums as it's the sort of fix that an eight year old could handle.
There are some amazing photo-etch sets coming up for the Jupiter 2, but to be honest I think this thing will make a fantastic out-of-the-box build.
Oh and another final thought on the hull - "Great curves, man!"
