Hard to tell if he's a WR or a TE but one things for sure, he's gonna own the slot for the next decade.
Focus drops is probably the thing I worry the least for a WR. It's not bad hands, or an incapacity to make the catch like a Ted Ginn, it's just a lack of concentration here and there. When there's a tough catch that needs to be made, he makes it, that's the important thing.