I have drivin my '11 Sonata in some pretty heavy weather up here n/w of Thunder Bay and never had a problem unless I get hung up and it's usually my fault going where I shouldn't for a pit stop.
The tires are good but could be better, Falken Espia EPZ.
Not bad on ice, ok in snow and slush, but cant handle much. The two faced tread only really bites down into the snow/slush on its shoulders.
The ice face in centre with it's tightly packed tread blocks tends to hydroplane on slush and prevent any real deep snow grip.
But still better than all season tires I guess, I just take my time and drive accordingly. These tires let go to easily in corners too, really appreciate the esp at times when I'm caught off guard.
Going studded next time, my '11 Accent had Kumho kw 19's with studs, I could climb a mountain .