I can't say I really like Kat's rework. It's awkward to set up her burst runs.
Since she's too dependent on those daggers for her damage outside of her ultimate, it's really hard getting several daggers out for those burst kills. I'm probably using the wrong sequences, though.
I do kinda wish she could use Preparation to throw a dagger to land at a target location rather than only being able to toss it to land on her current position.