Track saws are nice. I also have the TS75
I've been cutting a lot of plywood lately for some house projects, and it is very nice to just work off the tailgate of the truck. A few sawhorses for a makeshift bench, and know the cut is exactly what you want.
Muscling sheets of plywood, or MDF, is just a pain.
That Woodpecker Square you got with the deal is really nice. Worked in concert with the guide rail, you know that you're about as dead on 90 degrees, as you're going to get.
"The first thing you need to know, will likely be the last thing you learn." (Unknown)