The unit is a little large considering it is intended for storage in a car boot but otherwise it’s well designed, simple to operate and appears to be accurate. The cordless design is very handy, the only slight downside being that the unit takes around 9 hours to charge from flat! My only other comment is that it would possibly be easier to use if the connector to the tyre valve was of the ‘lever’ type rather than screw-on type, because it’s almost impossible, when disconnecting after inflating, not to lose some air! All said, although not cheap, from my experience so far, I would highly recommend the product.