I wanted a battery-powered pump that charges quickly and attaches easily and quickly to the valve of the car tire, without having to screw it on... This pump provides all of that, although I find the cable to be small, it could be even longer. However, in terms of accuracy, unfortunately, it falls short... and it falls quite a bit, I would say, as I have another precision instrument that showed a deviation of up to 3 psi! In any case, I wanted something that inflates very quickly and also attaches easily and quickly, and in that regard, I am satisfied without having to spend twice or even three times the amount to have these features with another pump! Therefore, I give it 5 stars with reservations, and I may come back in the future with an update...