Two weeks and I got to the cheesy 3.3k Jin combo in CS2 online consistently.
Now i'm on Extend and I don't think i'm all that good with Jin though.
Depends how you go about it, on your own, online videos, etc.
It varies for everyone.
Slayer is able to get great damage off of nearly anything, I main him so I would know.
Slayer also gets points for immense satisfaction whenever you get off a ForceBreak.
I can also mention Baiken for some guard canceling tricks as well as having a GET OVER HERE!
I'm not the biggest GG person so I may have some things wrong.