If summoner had more summons, or at least focused on one shot abilities that summoned a primal for a single move before it returned, I would probably like it.
The poisons and dot management is boring and has nothing to do with summoning primals. I dont understand why it was tacked on. It makes no sense. Summoner is one of my biggest disappointments in the game. I don't understand why they even made it..or scholar either. Even they dont know what the heck they were thinking. Summoner should have been like weaker versions of either the whm or blm with summons for npc-dps/nukes instead of spells(making them just as good instead of sub par). Then, they should have added a dot class separate. Something like the alchemist (item using job) though it would have a different name than that because we have potion brewers with that name already. This is all my opinion.