I have the Blackburn Air Tower III. It has worked very well, except with kenda tubes. For some odd reason when ever i try to inflate a kenda tube, it shoots air out of the wrong nozzle. the only fix i've found is to pump like crazy til it hits the 40psi range and it'll eventually kick over. Real solution: stop buying cheap tubes. I use it on my car and bikes with no problems.

is it the best? probably/most certainly not. It does function the way I wanted it to for the price.