Reminds me of Jack-6 of Tekken 6, watch FloE/Wong/Ricky play him in TT2 comic-con beating some really good Tekken players, because Jack-6 is THAT good with no execution needed, like… really no execution… imagine Ryu combo’s without links just with chains
With Jack you need to be able to do instant full crouch d/b+1 and that’s hard IMO. If you want easy you go with Bob (see: Tokido)
If it’s hard it’s only because you are doing it wrong. It’s actually way easier than SF4 links because you have absolute control and huge versatility on which combos you do, so even clumsier players can compete if they know their limits, plus unlike SF4 you don’t get punished for dropping a combo. You just dropped the combo and that’s it.