After my last Dagger dual wielder snowballed to the point of being able to kill hardcore Deadly Dragons with relative ease I benched her. Last week I wiped the save and all of my game/mod data in favor of a fresh install that combats the root of the problem rather than giving enemies ways to keep up.
Smithing nerfs, no alchemy use, no sneaking, Enchanting rebalance, zero regeneration (Health, Stamina, and Magicka), then I installed the Duel to make that lack of stamina really hurt. Now I'm trying a Breton 2H/resto warrior. Using a mix of the stamina perk and Equilibrium spell to micro manage my resources.
It's weird I can tell you that much.
But to truly answer your question I played for at least 4 hours today.