What a great RDA. I got the 25mm stainless. Looks awesome on the mod and performs really well. Great flavor, it is among the best for flavor that I have tried. Even using the prebuilt twisted coils that came with the rda. I have only tried it with a single coil as I was being lazy and it still produces a great amount of vapor and flavor. The top airflow really helps to cool off the vape. Three airholes open near the coil and top airflow about half open produces a nice taste vape tat isn't too hot even at 55 watts. Everything is machined pretty well and fits together snuggly.
Cons. It is a bit fiddly at first with all the rings and airflow. I had to work to get one of the post hole grub screw out. They are tiny and tough on the eyes.
would have given 5 stars except for the grub screw hassles