Cyrax/shujinko is pretty dirty.
You get a meterless/kameoless double bomb setup at the end of every combo with f+k, u+k.
You get good meterless damage (average 40%+) with the various launchers you steal, and each combo gives enough time to recharge shujinko fully so he’s available next time
You get a full combo off b1; either with f+k, u+k or with f+k into dbK steal.
All of this is meterless so you’ve always got armour for breaker, or can use metered ground net for the setup if you want to.
Not to mention you get lots of invincible wakeups/plus frames/projectiles for many of the characters.
You also get +100 health.
In most matchups it’s very worth it. The only ones where the steal is a bit ehh (in terms of combos) is Cyrax, Shang, and Reiko. Cyrax steals the net (but it counts as yours and you can’t double net) and the spin which is ehh in terms of combos-ability. Shang, she steals his ground sparks, or the opponent’s kameo; not necessarily worth it. Reiko, she gets his command grab (which is decent and ticks from basically everything) but doesn’t combo from anything.