{aftermarket} turbo from IL region

[SquareOne]

The place you're mentioning actually does have great customer service in my opinion, but that doesn't change the fact that they seem to be hit and miss. Even great customer service still means down time and headaches to overcome. I'm still running their actuator on one of my trucks (X-15) even though I'm on the 3rd try. Although this one seems to be the best of the 3.... its only about 9 months old, so it's about due to act up.

I have a YTS turbo in my other truck (ISX15)

Seems genuine Cummins original or reman is the way to go for the long haul most of the time. YTS is also a viable option from what I've read here and experienced myself.