Here is my KFM on a Piccolo next to a Spheroid on a Piccolo if it helps.
We just discussed in length the 2.1 on the PAPS thread 2 days ago. It is definitely a performer. The vape production is fantastic and the flavor produced in the small chamber is incredible. Many are overwhelmed at the chimney base size that must be placed over the wick but, it is easier than it looks and worth it. I haven't been without one since the release.
Although, I feel the Spheroid has it in flavor, construction, wicking medium/setup and looks if you are looking for a stealth classy looking set up. Owning 4 Spheroids, I am a bit bias.
This is a Spheroid I polished recently. They are sold in a couple finishes now.
It would look incredible on a Super T Device, incredible.