An amazing set which I've only had the privilege to examine at a friend's place. The first a foremost thing I noticed about this set is that it doesn't pretend to be anything it's not; it's a drawbridge, plain and simple. The second thing(s) are the unique minifigs, perfect for completeing a royal court with a queen, jester, paladin, and assuming you have King's Castle Siege, a king, knight and guards. A royal court you could MOC out of this set, KCS, Tower Raid, Dwarve's Mine and the Skeleton Ship's port perhaps? It's very feasible IMO, as a majority of them already have technic pins. I would like to see one of those, even though I much prefer the orcs/trolls over the crownies.
Back on-topic, the set features unique minifigs and excellent play features; such as the bridge, waterway and missile-thing. At $50 CDN it is a great buy, much more manageable then the Troll Fortress, though the cost still *is* a little much. I'm not complaining though, you get a plethora of figs (seven I recall
) for which to stage battles over a key strategic point (control of a bridge = control of a portion ofthe river when I play any sort of lego game).
I give this set an 9/10 because the cost is a little high (I'd prefer it'd be $40-45 CDN) for what you get in terms of land space, but it appears to be able be MOC'd to connect with KCS quite easily, which makes up for this fact. The 7 figs are a nice touch and river-crossing outposts are always a nice touch to use in any game, increasing playability value.
I can't wait to aquire my own Drawbridge Defense and see what I can do with it!