I use them.
Though I am definitely not one the better sticks around, I can say they are very precise and sturdy. Plus the distance between feet feels very comfortable. Also adjustable in stiffness, tip-brakes and are very steady on the ground. Either by rubberpads, screws or latches when you have a carpet. Wont budge.
from me
Matt
[edit] /kill->brain-> fast-type plug-in