I find this set to be the perfect army builder impulse. Already mentioned is the ability to equip 2 soldiers from the same set. Solid grey legs and torsos are so cheap to come by that you can get a fig like that for 50 cents. Throw on the armor and grill helm and spear he's a man at arms. 2 well equipped crownies for $4.00.
The torso included is great and the head even though common has a great expression for a soldier.
The icing on the cake are the parts for the weapons stand. Not a single piece I don't need many multiples of.
I purchased a dozen in 2007 and at one point thought I should have got more. In hindsight considering how many crownies I got with all of the great fantasy sets I bought... I just didn't need any more.
On a seperate note: I think impulse sets are mostly for the purchase of a single figure. Impulse sets will have to be as good as "The Knight" to be used as army builders in the future. The battle packs seem to have a good amount of weaponry, armor, and shields at slightly less ($3.20 per fig) than the $3.50 per figure of impulse sets. Weak impulse sets are likely to sit on shelves unless they add something specific to the theme i.e. wizard, jester. I am sure this is why this set sold so well. I never saw one of these sets on sale like the troll impulse was.
The Knight is definately a 5/5 set.