Kyosho Rock Force 2.2 Kit

Any Ching tried this?  Any comment, vs CR-01 and AX10?  At what price level?  Where to buy in KWS?

Thanks everyone for the detailed and professional response.

CR-01 : I love it due to the appearance and shell, but really think it is not very good at crawling
Kyosho : I love its mechanics and it looks sturdy, but it is less popular and so parts/upgrade may be an issue
AX10 : Seems popular, simple in structure, no worry on parts

Have anyone heard Venom Creeper?  Looks simple and works well (video on youtube).
http://www.venom-group.com/store ... d&cc=MODEL_ROCK

Anyway, thanks again.

By the way, anyone could give a hint about Kyosho recent price?