Does anyone have the baby nari hip seat? With or without the extra eco strap??

DS likes my regular ergo but I'm considering getting another carrier so he can face out at times. I'd rather he have a "seat" so he isn't dangling. I've heard mixed reviews on the ergo 360 so am looking into the nari hip seat. I figure I can use this with DD as well since she likes to be picked up and put down constantly when we're out..

Anyone have experience with the nari? THanks!!