How hard is it to uncouple with N-Possible couplers?

[NtheBasement]

The N-Possible web site has a clip that makes uncoupling look quick and easy but for all I know it was their twentieth attempt.  For those of us who switch cars, how hard is it to uncouple?  Is it harder or easier than with MTL couplers, which require a twist after hitting the target?

[Rasputen]

I got to try them at the National Train Show.  They are as easy as shown.  I also wanted to test them in the delayed position, where you can shove a car that is already uncoupled into a siding where you can't reach.
This worked well too.  Do you want me to send you a few sets to try?

[spr1955]

This might be a bit off topic but I use GUM Proxabrush Go-Betweens - Ultra Tight- Interdental Brushes (the orange ones), clip the little ball and shaft off and glue into a styrene tube cut to the lenght of your liking, no twisting required, works well with a mix of couplers.  Only issue is sometimes the car not uncoupled can rise as you lift the brush up, requiring a finger to hold down.  Not sure if it would work with these, look mighty small.