I got the Touche for controlling orchestral and ethnic instruments, specifically for mapping dynamics, vibrato and expression to the different axes of the Touche. I'm very pleased with the results: smooth expression, much more detailed than what a slider can get you! The best feature is that you can use two CC's at once (example: vibrato and expression) and have them flawlessly combined into each other. You can even set up your own custom CC curves (like exponential or linear or even draw one).
It might take a few days to get used to controlling the Touche on one hand, while playing your keyboard with the other - but it's worth the practice! An extra good feature is that you can control the sensitivity of the Touche (how responsive it is to your movements). It is a physical instrument after all.
A small con is that it takes about 10 seconds to save any new CC controls you assign and that it took me about an hour to find the right way to load Touche only as a midi instrument (without using Lie). But once you learn that, it's easy.
I highly recommend the Touche for orchestral composers who want to avoid using 2 or 3 sliders at once. I would recommend going with the original Touche and not the SE if you want even more CC control.
Well built, feels sturdy - and you can replace & customise parts.