So I actually bought this last time it was on woot (maybe during a woot off?). I'll just say this about it: It was fine. Not awesome. Not horrible. Just fine.
Good: Kept my 4 y.o. busy for about an hour on a couple occassions - mainly gluing the random stuff together. The kid also threaded the beads together and made a sweet necklace.
He also enjoyed making "arrows" out of the pipe-cleaners to play Brave.
The twist crayons are always a hit (except kid will screw them all the way up and break them off).
Bad: Unless you have a big canvas to work with, there wasn't much to do with the various items. For example, there were little blocks and popsicle sticks. So we glued blocks to the ends of the sticks and tried to build a house. But it was pretty much not awesome.
There's also a pack of foam popsicle sticks, that we basically just glued the feathers, poof balls, and googly eyes to. Not sure exactly what you're to do with foam popsicle sticks (we also just cut them into pieces; since the glue wouldn't stick to them well).
The smaller beads were too hard to thread onto a necklace, esp for little hands. So we just glued them to the popsicle sticks.
The markers were so-so (and bled right through the paper we were using). The scratch art was a one-time thing (and VERY hard for a kid). The stickers were nearly impossible to get the paper off the back, so we just cut them out and you guessed it, glued them on.
Suggestion: Take your time and go to the craft/dollar store and build your own pack of crafty bits. Have an idea in mind of a few things you'd like to create and buy the pieces to make that happen.
Caveat: If you're buying this for a classroom to build up your supply closet, it's a decent assortment. I would even consider picking up a couple of them (unless you would rather take my suggestion above).