I am wishfully thinking that a little further down the line Festool might actually offer a rebadged Fein ASCM and the 12V Impact in the CXS line up. It would make sense: a four gear brushless drill with chucks and an Impact drill for the CXS/TXS line up. I would get both. Toss in that MultiTalent and I am good to go.

The Fein ASCM bit holder shaft has the same diameter as the larger Fein Quick drills but the Fein Bit Quick chuck does not lock in place. It fits nice and snug but the locking ball detents are not the same and do not match up.
I did get to try it with the 18V Bit Holder chuck in place and the machine is very well balanced without the drill chuck.
The ASCM 12V is kind of reminiscent of the Festool T12+3 in both body size and handle shape - maybe that is why I like it so much? The grip is even a little bit better than on the T12+3. The batteries are very small sized and look like toy batteries.
A kit consisting of the MultiTalent, the ASCM, the Impact plus that little LED-light would fit in a Systainer and would make for a nice little kit.
I have no pressing use for it but I like small and capable machines. I think Fein did really well on these.