Interesting set. I remember being excited that this little parts pack came out back in the day, but then not so interested in buying more than one after building it. The Skeleton was new back then, and I was a little disappointed how floppy the arms were (not so good for an army) but I loved the details (swords fit through the ribs). The knight figure was rather plain and didn't induce as much lust as other more armored warriors might have.
As the main model did have lots of parts, that was great for building Castle additions. The hard thing to do however was to add this model into the layout for the Royal Knight's Castle as the base plate left the design closed to this *object*. So in effect this little set becomes a guarded crypt for a Royal Knight's graveyard, which seemed to be out of LEGO-bounds back in the day.
Striking out on my own with MOC building I learned that the pre-fab Castle walls had some limitations so again I lost some interest in more than one of this set. It's a case of being just enough to get your attention, but lacking the details to hit home the love in this package. If it had just a couple of improvements or a third minifigure (like an archer) then it might rate higher, but in the time it came out it was a little above average. I have to also add that the Pirate sets coming out at the same time were FAR more attractive in parts and build most of the time.
I rate this set a 6.5 out of 10.
There is no life I know to compare with pure imagination. Living there, you'll be free if you truly wish to be. -Willy Wonka, 1971-