I would say yes.
In certain matches it can be quite usefull. For example reacting to rams swords summon/attack with fs-p guard (at full screen leaves you in a situation that can lead to a surprising momentum shift. (from full screen of course) same goes for some situations with ELP grenades but knowing to escape or hold your ground is the difficulty of this. It's never really a go to thing to use guard.
I find its a amazing burst bait that leads to monster damage if times right.
(Absorb the burst with the guard then 6H to punished if time we'll you get the ground bounce and can follow up with 6, 5K, 5S etc).
Draw backs are that it want gaurd low attacks but you can yrc, which leads to guessing games for the opponent.