He feels annoyingly UP after the nerf...
He's still good, you just have to play him differently. Run Hidden Compartment, stay in long range mode and snipe Titans with double Power Shots. Play him like Northstar and peek around walls at a distance, but make sure that Gun Shield or at least one Power Shot are off cooldown before you do that (i.e. don't just stand there and hold down LMB without your shield available). The nerfs did nothing to hurt his anti-pilot game which is as strong as ever.