Thanks everyone for the replies.
Good to know they can be decent pumps. I'm sure quality control may not be as good as a Hill pump, but you can buy 3 or 4 for the same price. a lot of the negative reviews I read on the cheap pumps left me wondering if these individuals actually know how to use one of these pumps and what applications they are best suited for. I saw some youtube video reviews and these people are just pumping away without pausing at the top and bottom for the air to transfer. Some are trying to fill large air tanks (never going to happen unless you're superman). Pyramyd Air has some good videos on the proper way to use a hand pump and the proper applications to use them with.
Do these pumps have any kind of desiccant system to remove moisture from the air? Or any way to add one? I live in South Louisiana. Our air is a little moist to say the least.
Thanks,
Kevin