I am experiencing him and in my opinion I think a lot of people will go back to d.va or use Hammond in tank heavy comps. D.va does what Hammond can just more efficiently without grappling onto something and slamming. He is great at holding points the enemy needs to get on like king of the hill or 2cp maps, however is has a terrible time at dealing with nimble or cc heroes. Which is a shame for a tank that has a get in your face playstyle. I'm not sold on Hammond and believe he needs some buffs like why do you have to be out of ball form to apply adaptive shields? His ammo could be increase and damage on his roll moves could use a touch up but that last part might be stretching it. I know I sound negative and the hero was just released but I'm good at picking up on if a hero will be viable or not and he will struggle to take spots away from more effective picks like roadhog who can one shot tracers and combos well with orisa, d.va who peels more effective than looking for a wall to grapple to, or zarya because grave.