Depends ...
Some classes seems appealing even on lower levels ...
For example Fighter will give you Action Surge, Druid give you Wildshape, Rogue gives you Cunning action (and should give you Expertise right on 1), Sorcered provides Sorcery points (and Wild Magic feature?) on level 2 ...
Those things could change tides in many tedious battles.

But the main point (at least for myself) is still testing ...
Larian have ugly habbit of creating incredibly chaotic UI in their "first attempts" ... so i would like to see multiclassing UI rather sooner than later.
