Pet attack command is so good for summoners, also for sending them ahead to aggro shit for u. I got some expendable skellies in my cab build to soak plague raged mobs.
Yeah honestly pet control is so much better in this than PoE it's pretty stupid. Especially since the pet command isn't taking a fucking gem slot or has a 8 seconds fucking cooldown. Want to move shit out of an aoe, sure, want to move shit in melee range so they can shotgun their aoes, sure, want to focus that one particular fuck, sure, want to send them ahead to aggro shit so you don't get raped, sure. Can do everything.
Also you get a lot more pets than a general poe build, unless counting stupid shit like SRS or AW. It's like 10skeletons which actually follow you and are useful, 2 big guys with a bunch of skills(blight fiend and hound), one support pet(crow) and then a bunch of temporary pets depending on items and devotions, I have like 1-5skeletons from a devotion, 5 scarabs shit from a relic, Wraith from Reap Spirit and for a while I had a pet proc on my offhand that had an aoe buff+heal and before that a permanent skeleton with an aoe absorb shield.
Also kinda feel good about having to use a bunch of different skills to proc every devotion/apply everything, instead of like one spell to curse.
Definitely cool systems.
On the other hand I hate playing a melee in this, it's clunky as fuck for some reason. The lack of movement skill is also kinda annoying and makes maxing movement speed a huge priority but it's not that easy to do so unless you have a skill for it.