Pros: Almost everything. Before Tyon this one was Roccat's flagship and it is designed with love.
Cons: Not ambidextrous, LMB double clicking after one year.
About the Kone XTD:
I liked its speed, its accuracy, its sensitivity, its scroll, its feel, everything; and lasted for nearly one year (which is decent in mouse industry).
The buttons feel awesome and are good for fast clicking in FPS.
Mouse is palm grip and requires fairly (on average) large hand. In my experience it is fast enough to not require any other grip while playing RTS and MMO.
The side buttons are not well-placed and I never used those.
Works on all kinds of pads, I started with Roccat Sota, but that quickly became distorted, so switched to Goliathus.
The sensor is 1:1 and there is no prediction or accel.