So far this is a good product.  The only design challenge I see is that the foot pedal that engages the mobility wheel is wide to the point  it cannot be placed on the narrow side of my jointer.  The jointers side is 14.5 wide as it is a 6 jet jointer.  That having been said; I must place the mobility wheel in front of the machine instead of on the side where it would provide the most mobility.  If you have a narrow machine you should bare this design challenge in mind.  If you have a larger machine (like a band saw) it should not be a problem.