I got "the one above it" and am happy with my purchase. It gives you everything from the $26 kit + some servos, sensors and a small lcd.

The tutorials are good, although could be better. It feels like its either translated from another language or written by someone who doesn't really write tutorials, just documentation - I would rate the style somewhere below API/documentation of the better open source projects out there. Perfectly serviceable for a beginner, but if you're like me, you might end up doing some internet searches :)

You can have a looksee what's included in each of those docs/tutorials here.