I actually have one of those, mine came with a booklet that showed how to make different stitches. It was fun to play with, I haven't had it out for years but I did make a few blankets on it. The only down side is the same as my knitting machines, not portable. One helpful hint, use clothes pins with some big washers tied to them as weights, it helps with the bottom curling up.
The booklet came with mine too. It only has a pattern for a sweater. It does however have stitch patterns which don't really help me a lot.