As always, Gempler was great in dealing with the defective justrite can. They sent another and we are all squared away.
Here's my impression of my two cans (1.5 gallon and 5 gallon).
http://www.gemplers.com/safety/chemstoragehandling/safetycans/139231.html
PROS:
Well made. If parts and gaskets are available they should last for many years. Seem to seal well, and have a built in pressure release for too much pressure.
Nice control filling saws with the smaller can. Spout is small enough I can see what's going on pretty well, and when I release the trigger the flow stops fairly soon.
CONS:
With the permanently attached elephant style spout, which I do like, they take more space when stored and transported. ALso the round shape makes them pack away a little less easily in my trailer toolbox.
The safety design (I guess) forces you to hold the filler cap open with one hand (on a lever) while filling. If it were up to me, I would be able to lock the filler cap open so I would have two hands to work whatever I was filling the can with, like another can.
One nice thing about plastic cans is you can see how full they are. These you pick them up and guess.
THey have a screen down in the filler cap, but 1) I don't know how you would clean it and 2) and carp that gets in there can get washed back into whatever you are filling. It may pull out, I haven't tried that yet.
Overall I like them.
I am still curious about the Husky style combi cans and if I ever find them in the US I will try some out.