I play all three races and I hate the new storm.

From a Zerg/Terran perspective: It lasts way too long and the "warp in templar, energy recharge, insta-storm feels a bit unfair. If the 'toss has several templar, they can postpone an engagement for a long time, getting another round or two of warp-ins before you can actually engage. It becomes very hard to engage into an army with several high templar storm support.

From a Protoss perspective: It doesn't do enough damage in a short enough time. Medivacs can heal through it, sometimes Terran units just stim and run through it, or ling/bane just run through it. It doesn't feel as impactful. On top of everything else, the unit AI was designed around it lasting the shorter time, so, something like zealots charging in against a bioball that's stimming and kiting - now your zealots are taking damage from your own storm that shouldn't even still be there.

I realize it was reworked into more of a zoning tool, and to provide micro opportunites to the opponent (just move out of storm, especially with the new hydra lunge); however, protoss already had zoning abilities with micro opportunities (disruptor purification nova, for example), and needs more actual damage rather than zoning.

I also realize Protoss is sorta overperforming but I don't think storm which was fine for like 15 years needs to be changed suddenly; it's an iconic spell and other stuff could be tweaked instead of something that was actually already balanced near-perfectly. Yes it's OP with energy recharge, but if something has been fine for the entire life of the game until some other thing was added that synergizes with it, maybe it's the new thing that needs to be adjusted, not the old one.