The AerGun X-1000 performed the best across the board of the lower-priced floor pumps we tested, and wins our Best Buy award. Its most significant asset is simplicity; the pump head automatically accepts either Presta or Schrader valves in the same hole with no adjustment and no fuss. Most other components won't blow you away, but they get the job done and they do it well. The gauge is uninspiring, but easy to read and accurate. Pumping feels easy and smooth.
There are fancier pumps out there, such as the Lezyne Steel Floor Drive and Rennkompressor, which make great use of metal parts and are likely to last longer, but this pump is half their price and gives fantastic bang for the buck.