Quite recently, a lot of reviews of LEGO MINDSTORMS NXT One-Kit Wonders showed up.
Forum reader Jeff reader reviewed the book as 95/100 when it comes to ideas and quality. Whereas the models in the book were designed for the NXT retail kit, Jeff made the SPC with the education kit and several extra parts:
Read his review here.
Another review, which features a video of "The Hand", was posted on the tech blog Make. You can find it here.
Finally, reviewer Jill says the following in her review:
"One great aspect about One-Kit Wonders is that it features something for everyone in the family. The projects included range from an M&M Sorter (my kids favorite) to a dragster (my husbands favorite) to a bike that steers and moves by itself (my personal favorite)."