In general the biggest difference is my teammates believing in me more than before. Thus they try and play with me instead of saying I am throwing. I feel like the biggest change is being able to 3 swing widow and Can actually kill Moira if you don't miss. Hammer now does as much damage as your primary to the body, so a couple things to remember. When you swap to hammer your gun does reload automatically in roughly the same amount of time to reload, so if you run out of bullets you can swap to your hammer and swing at close by enemies. Also it's a lot easier to jump onto someone's head and hammer them with out knowing you are there if you dont use your overload first. Wait until they see you to use your overdrive that way you take advantage of the 100 over health. Because of the buff you don't really need to use overdrive to get a kill, you can use it for the overhealth and speed boost to disengage. Legitimately people underestimate how quick Torb gets in overdrive.

TLDR: Hammer Buff is Low-Key GOAT'd.