Get the Biggest Pressure Canner
For the same reason I bought myself a second pressure canner, I will recommend getting the biggest pressure canner you can afford. Then you get more canned in the same amount of time.
Cons of the All American Pressure Canner
They can be too tall to fit under a microwave/hood combo over your stove, so be sure to check.
They are not recommended to be used on glass cook tops because they are HEAVY!