The best moment in the franchise is still when the Emily Blunt character cocks her shotgun at the end of the first one and the audience gets a big surge of hope. This one lacked that spirit.
Since the reveal in the first one that feedback can kill or at least neutralize them, I've been patiently waiting for the installment where ragtag bands take to the road with amps and electric guitars and shred those monsters with the power of rock and roll. Still waiting ...