Well I pulled the coil out so it's closer to the air inlet....maybe it's to close...dunno...not easy to tell. The inlet has a flat area inside the cap (nice touch to detail) to direct the flow to the coil...here's a photo
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I have the coil very close to that flat area, but can't say I notice a change in flavor. Here I have to say, i'm not a flavor aficionado. My senses has been burnt to shreds by 40 years of smoking. I think though, the flavor is as good as it can get....again it's very good....almost on par with the bottom airflow RTAs.
But there's other things that make me reach for this Kumo almost every time. The airflow is smooth..super smooth, and silent. As I said before it's a slower going draw...and I like that. Feels like i'm positively drawing against something...you'll know what I mean. Also it does both a RDL and MTL perfectly. It fills easy and is very well built.
As to the coil height..you can imagine it can take some fidgeting to get the coil at the exact right height...and the exact right distance from the air inlet....to get optimum flavor....but by just dropping the coil in, it's still good enough. It did improve once I started fidgeting with it...so it's worth putting in the effort I'd say.
That might 'irritate' (lack of a better word) some people, but I like fidgeting...so i'm good.
All in all for me it's a must have RTA. It's different in a good way....again, I like that. It's a laid back relaxed vape.