I hike a lot so I really need something for safety just in case I have an apartment or need to air my tires when I get stuck in the sand - and it's perfect for re-inflating. I like that I can preset the pressure and I like the lighting option that allows me to use it like a regular flashlight and that it rotates to red light including the SOS signal. It's neat and compact, another feature I like as I need to keep weight and size to a minimum. Yes, and the instructions provided are simple and clear.