The monster tactician is what many players hoped to get from the summoner; a class based on summoning and on buffing summons. What they lack is the eidolon, the broken spell list (chained summoner) and the archetypes that made the summoner most hated: Master summoner and synthesist. And your summon ability does not include gate.
You can get a less broken companion by selecting the chivalry inquisition or a domain that grants a companion or familiar but you have to spend a class feature on it plus a feat for a full animal companion.
What you get on the plus side is the ability to give teamwork feats to the summons and by that buff your summons, what the summoner can not without spending spell slots and additional actions.
You get better saves and, being a divine caster, have no problem with arcane spell failure when wearing medium or heavy armor.
Without the eidolon I don't see it as The Summoner any more than Occultist Arcanist is.
Strange, I wanted to put this in the General Discussion board, it seems I messed up.