I am not an "older guy" and for what its worth none of us are, I mean we play with trains for cripes sake LMAO!!
I have the WIU and I am not a fan, other than the quillable/playable whistle, I personally don't use it as all, the few times my wife decides she want to run them with the kids, I have taught her how to use it (THE WIU) instead of the remote as the kids do seem to like the app more than the remote. I think the colors/big buttons really attracts them.
It serves its purpose on my layout I guess but a purpose that does not serve me lol.
Thanks!
P.s. @Barry Broskowitz has demystified the quick speed feature for me I would have never thought to type the number LMAO like a genius I would keep clicking the wheel which would only back me out of the feature!! I am officially an idiot.