I have an Air Hawk, very similar. It's ok but it's no real air compressor. I use it to keep my riding mower tires inflated.
For my vehicles I use this instead. Does my truck tires, no sweat.
I remember seeing ads for the Air Hawk too. I clicked on your link but it states "product not available". The commercial for the Bullseye shows it inflating a car tire very quickly (I assume it's in real time).
