Turrets are pretty easy to take care of, but they're also easy to get back up. However with 6 of them it's a fucking mess, lol.
I played a lot of Torb in the first stress test months ago and he just felt awful, right now he feels like he's in a super good spot. He has enough health to survive a few rockets, enough damage to 1v1 anybody without his turret, and the giving armor to your teamates is extremely useful and I'd even say overpowered if your team is getting a lot of kills.
I think Torb and Bastion are both in good spots, but I can see how in random pub games with a team that doesn't communicate or anything could see how they're OP. S67 or even Zarya's big plasma balls shred both of them so easily. Bastion feels extremely situational, but also I feel like a lot of people that were playing Bastion were completely ignoring his regular rifle as well, he can dish out some damage with that thing but everyone seems to try to go back into turret mode lol