The dual fighting stuff has been great from a presentation angle as well. You can hold combos switching mid combat without some jarring transition, I would have actually liked to see even more of these type of things as they've been great.
Oh yeah, I don't even know what quickfire explosive gel is even doing anymore. I used to use that all the time.
Yeah, I've found this to be a problem. The brutes seem to punch outside the normal 'rhythm' of combat. I've quite often been hit by them when coming out of an Instant Takedown or something, before I could manage to dodge, which just doesn't happen with other enemy types.
The Blade Dodge Takedown also doesn't seem to work properly, or at least not the way it used to. In Arkham City it was 100% dependable: you pulled the stick back towards yourself, the camera would swing around, and you'd hold the Counter button between slashes. In Arkham Knight it doesn't seem like the camera swings around, so you have to point the stick away from wherever Batman happens to be pointing. Only sometimes the camera does swing around. I don't know, I'll have to experiment with it some more.
I'm a bit disappointed to see the same old Quickfire Gadgets return, too, and this time there isn't even a Freeze Grenade equivalent (unless I missed a double-tap R2 move?). And, yeah, Quickfire Explosive Gel was totally nerfed. Explosive Gel -> Multi-Ground Takedown combos were godlike in Arkham City.
Other than that, I actually really like all the new additions to the combat. It's one area where this game feels perfectly Rocksteady-ish to me, if that makes sense. When WB Montreal tried to tweak the combat in Arkham Origins they just messed it up, but Rocksteady knows exactly how it should be. I really enjoy the added pressure of having to keep the Medics down at all times (or, alternatively, leaving them alone to do their thing, which might result in better scores in challenges). Having to deal with so many different enemy types makes it feel a lot more rewarding to me.
Oh yeah, I don't even know what quickfire explosive gel is even doing anymore. I used to use that all the time.