Im playing a minion build, and they do good balanced damage (im low lvl, 14 right now), in special the ranged ones with the active skill.
Tested skeleton archer, arsionist and cold mage. With support gems, damage and utility is very customizable.
Warriors damage isnt big, but ok… keep in mind i dont have a big army yeat, due to low spirit.
Im taking only minion nodes, and using items with + minion gems.
You actually play kinda hibrid, where your damage is complementary with minions, like diablo 2 where corpse explosion had a important AoE place.
I feel in boss fights minions have a advantage, because while you are evading boss mechanics, minions still doing damage for you.
Too early for a complete review, or comparing with other classes/builds, but im happy so far with the experience.