I guess if your on that fine line at the Elite 4 where you need to heal mid battle to win, it is some what viable, but by then most Pokémon should (to be viable) have around 160-180 HP. That short fall mid battle may make a difference, but I suppose paired with revive (which for those who don't know, restores half the max HP of a fainted Pokémon) it would still restore every HP. The answer that was given about Max Potions/Full Restores is valid, but not for this question, as I'm specifically asking about the value of Hyper Potions over standard Potions, so yes, I agree with sumwun, please make your comment an answer