Cool, right? But heres a rant.
I believe this is a point of criticism because while this allows for very precise speed control and makes the smoothness of the acceleration/deceleration depend almost completely on the machine instead of the driver it is a bit overcomplicated compared to the old handle which had just zero, 4 acceleration and 3 deceleration positions and was as easy to use as the wooden stick. Also I'm not sure the response times can be as small here as with acceleration handle but they are quite important for such "tight" graphics, but nonetheless I believe they have thought this through. But another weakness is that the most rear position of the handle engages emergency breaking sequence, this makes sence but it is actually not that hard (physically) to miss to this position which is just a bit harder to press. At the first day of Moskva on the line is had an emergency breaking, this could be because of minor ALS-ARS malfunction but this is more common with recently opened lines so I think this could happen because of an inexperienced driver occasionally hit the emergency position.
Also the drivers need to get used to the new completely different system and also while there are older rolling stock they need to equally well operate both of them which should be a bit of a problem as you have to be able to do it automatically, without a second thought.
I guess this isn't that big of a problem but nonetheless an inconvenience for the initial period in each depot.
The 81-760's handle for comparison.