Ultimate Management - Cynical Nerds

Link here - https://youtu.be/c-W6mXPilhU

So I definitely struggle a lot with when to use my ult, finding it annoying to the max when I have to go for a big push and my ultimate is on CD or when I am afraid to use it and thus it takes up a slot on my q, rendering the charge useless and robbing me of an ult. I think this video helps a lot with discussing this (somewhat novel) type of addition to a shooter, and cynical nerds usually do a pretty good job at looking at every angle. What do you guys think?