Are you experienced?
If you have a lot of shoulder time with that 12 gauge pump, take it. You might want to even if you don't, just for the expericence.
So far as the nay-sayers go, take it with a grain of salt. I've seen more than a few experienced pumpshooters who do deliver as much aimed fire as fast as any autoloader.
Most of what I see with autoloaders are sky busters if they are new to the game.