As posted by me in the Goro GD thread:
I'm sure it's old news but even though f212+4 is slow as shit, I find that it's a great spacing tool on block(safe) and does a good chunk of damage on hit, where even that last delayed hit(which'll catch even slides trying to punish the string gap) does 11% raw. I often use to to catch people trying to get up without a good and/or armored wake-up by doing it and then d4'ing immediately into punchwalk, all of which does decent chip.
pretty much gapless.