Depends on the variant, there is like 5 different storm decks in legacy and only 3 of them play any sort of protection/hand disruption (the other 2 being Belcher and Spanish Inquisition)Legacy storm is easy to play most of the time as you have on average 1/6th of your deck which you can use to look at there hand.
Modern storm is hard because your opponents disruption is on par with legacy's(no force, but ain't no ANT players 'bout to lose to force) while your library manipulation is BAAAAAAAAAAAAAAD.
I would argue it's comprable, your cantrips are much worse, but the disruption in modern isn't nearly as potent as it is in Legacy (It's not FoW that ANT is scared of it's delver backed with Force, Daze, Wasteland and Stifle,
that is legitimately terrifying for a storm player).
Again, It's once you start having to play around disruption that separates the men from the boys.
I'll give you this, Modern Storm is definately harder than Belcher, and probably ANT (on par at least)
but I digress.
For discussion, I distinctly remember there being a variant of this that played Gifts Ungiven which looked pretty sweet (partially cause Gifts is a sweet card), then the Seething Song ban happened, and it kinda disappeared, anyone done anything with that variant or is it pretty much dead?