It has no vent - it takes forever to dispense (gurgle gurgle gurgle) You are required to push the nozzle down to open. Because of the mechanics you can't drain it (5 gallon model... about 1 gal left). The seal is a cheap rubber gasket with a grove that rolls over and self destructs if you twist the nozzle - leak leak leak.
If there is ever a revolution, we really do need to kill all the lawyers.
(went back to find a simple "old school" can... couldn't find one)