I opted for the smaller version of the Bosu trainer because it is much cheaper and small enough to fit under the bed. Since I do not know the bigger, I can not judge whether the minor has any restrictions. The Bosu website I was not smart in terms of differences.
The Bosu trainer is supplied with a small exercise book, a guide and a small hand pump. The hand pump was more than adequate for the inflation. The exercise book is really thin, but for starters also sufficient. A book or a DVD as a supplement are helpful for training.
The price I find quite salted. But the workmanship is good. The machine looks after it for a few years without damage with power ... as long as you do not just gymnastics with heels.
Conclusion: I have fun with the device and can not find anything negative. Therefore, full marks.