"Excellent set, have only completed the shuttle thus far, build quality is very good (rigid) approx 10" in length so has play-ability. Built in under an hour by my 5 year old son (nudged in places by me).
The shuttle itself is very accurate in design, the opening hatch and movable satellite arm make it excellent for display, for me..a few decals on the wings or nose cone would have been a nice finishing touch.
Good detail on the astronaut torso, additionally i may attach a transparent 2x1 and fit it to the legs and place him on the shuttle wing to create the sense of floating
in summary a good set with many options and a fabulous price, in my opinion "a set worth having"