Once I'm done with the 200# that came with my 590, I'll be ready to consider other options. Can one really tell the difference between Lumberjack pellets & other brands?
(Honestly, I don't know)
I get them because they seem decent and are available locally for $15 for 40 pounds. That's cheaper than propane.
I seem to get good smoke out of them and have not had any problems burning.