Pros:
1) center air flow...great for both single and dual coils
2) spring loaded clamps make it super easy to install coils
3) juice well that you can partially close after filling...it's not a massive juice well, so no worries there
4) fantastic flavor...it really shines single coil at middle of the road wattages.
Cons:
1) uneven clamps with single coils...they're a little off center when you install a single coil
2) screw down cap. but that can be a pro, it's really subjective...
3) some people have experienced seepage from the seam at the bottom of the tank near the air flow
Wick it right, and you have an awesome little pseudo RDTA. Great flavor, great air flow for those clouds, I really can't complain.