The product is sturdy and works well.  I like the dual presta/shader system.  It is so simple and you don't have to put any adapters to make the change of valve type.  In fact,  the end of the hose has both.  you just need to choose the side you want (shader/presta) and secure it by moving a lever and start pumping.

CONCERN:
Sometimes when the pump is not secured well, the pump registers pressure although the air is pressurized between the pump and the tirevalve and so it displays really high pressure.  you just have to be careful that there is nothing wrong with the tire valve and that you have properly secure the pump so that air is passing normally to the tube through the tire valve.