Not from what I've seen. Then again, avoided AK altogether, but from what I've gathered, AK has a fair bit more in the way of issues than shitty ATI driver compatibility.
Actually ended up playing this for ~5 hours so far. Would probably recommend restarting the game after 2-3 hours of consecutive running as currently there are eventual memory leaks (at least if you alt-tab a lot, and I do), but even then it seemed to stay at acceptable frames.
The story and the characters seem fittingly retarded, but the story missions are varied enough to actually do. Rico is stupidly overpowered, but that's nothing new for either the series nor for a game following SR3 mentality, plus you still can die if you get cocky enough. Destroying shit is fairly satisfying, and yeah - you really do NOT need bullets to destroy shit. It's just, why wouldn't you shoot things? There's zero reason not to shoot. I think I'm also coming to terms with endless notifications of beating everyone's headshot streaks, but still want an option to turn that shit right off.
"Minigames" seem 'k (destruction/kill frenzies, flight challenges, races etc), controls seem mostly 'k, didn't even need to remap most of them. UI default controls are not 'k though, but at least you can remap them. Vehicles control fine, from cars to boats to helis. Haven't gotten to planes yet, hoping to see those some time soon. Helis are much more vulnerable now, largely due to AA batteries all over the place, going down in 4-6 shots seems reasonable. Taking over towns, garrisons and plants is gud, lots of explosions, and less of hunting that last tiny fucking barrel from JC2 this time around.
Overall, it's pretty much what I expected and it's pretty much what I got. I'm probably "lucky" to have a decent enough PC to just ignore any optimization issues that might be there, but hey, that's why I bought it.