I am did what many of you have with the 7091 Knights' Catapult Defense. Yeah I bought multiples of it. (I think I am at 4 or 5) When it first came out it was one of the few sets with shields for the foot soldiers and I really did the black skeletons. JoJo pretty much said it that realistically a catapult would not have a spinning top aka the lego turntable, but one can always just not add the turntable to the set. I do like the size of the wheels. They look like they could handle the “weight” a catapult plus projectile. The entire siege engine looks very well balanced. The skeleton barricade is a little goofy, but seriously are there many skeleton siege engineers?
IMO the barricade is just the little setup that the boulder from catapult is to crush. I like the figures and it is a pretty sweet deal.
For a smaller set I give it an 8 of 10. The set has great playability, good figure selection, a believable design, and a good selection of mini figs and accessories. TLC did a fine job.