Had two of those Planet Bike ones, complete garbage. The needle inside, that's suppose to poke thru the CO2 cartridge, folded up after a couple uses. Kind of leaves you with no alternative at that point, reason why I still carry a small pump.
I've had (lost a couple, stepped on on, dropped one in a drainage ditch) various models from the Innovations line, they've held up very well.
What ever brand you get, get the type that takes 12g unthreaded cartridges. You can get replacement cartridges, 24 to the box for less than $15 at Walmart.
Always carry a couple cartridges, I've had a couple misfire when attaching.
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This is Africa, 1943. War spits out its violence overhead and the sandy graveyard swallows it up. Her name is King Nine, B-25, medium bomber, Twelfth Air Force. On a hot, still morning she took off from Tunisia to bomb the southern tip of Italy. An errant piece of flak tore a hole in a wing tank and, like a wounded bird, this is where she landed, not to return on this day, or any other day.