A nice review of a very nice set! Thanks. And good photos too!
I got this set when it was new and I still have it for display at home. I don't think I ever have disassembled it, at least not the shuttle itself. For me this space shuttle served as a link between my Lego town (on earth) and my Space theme sets, visiting and supplying them. As a child it also inspired me to build my own very huge space shuttle (that could fit this little shuttle in its cargo bay). Maybe not a very realistic build by today's standard, but it had a pneumatic crane and retractable landing gear.
Back to this set: Like the design, as others even I think the shuttle in the Launch Command sub-theme from 1995 look better and more realistic, like 6339 and 6544. Unfortunately I don't have any of them. The 5 stud truck and the trailer looks great, also the motorbikes look very good.
Oh, 6670 , you almost inspire me to write a review...