The pump's small size and battery makes it easy to use in an emergency on your back or backpack while cycling. The pump is noisy and slow. It shines for small things like balls or bike tires and can inflate a car tire BUT you have to wait a long time (over 5 minutes to go from 27psi to 35.5). It would be better if the hose was longer, but that's not an indicator. Different settings work differently (when setting a car tire the pressure exceeds 2psi, I assume this is due to air loss from removing the pump, this has not happened in the bike settings). The pump can also be used as a backup battery.