I prefer 124gr +P... but many like the 147gn.
Heavier does hold a consistency advantage as far as amount of penetration, but I feel personally that it is a little too heavy for the 9mm... but thats just me.
I didn't see what they loaded it with, most use Gold Dots. I do not have a lot of info on the Grizzly brand... I think I heard one or two favorable mentions of it though.