I have a big pile of Festool stuff but the two items I consider really worthwhile are the Domino and the Kapex (miter saw). The Domino is a sort of “force multiplier” for my current level of skill in that you can plan parts as though you were going to dowel/pocket-hole them and then get the benefit of tenon joinery.
For the Kapex, I actually went through several other miter saws first and found myself actively avoiding them due to the giant cloud of crap they threw into the air. So I got the Kapex with its excellent dust collection, despite it being the price of two other-branded saws, and have been very happy with it.
Which is where things took off for me, as I realized I didn’t get any joy from doing in-house tool testing. If you are fortunate enough to be in a “money to burn and don’t mind smelling the smoke” situation, getting a Festool tool is shorthand for “give me a thing that will definitely work the way I want it to so I can stop thinking about it.” Is Festool always “the best” (whatever that means)? I don’t know, really - in the case of the Domino it is pretty much “the only,” so there you go.
In other cases, I couldn’t say, but I can say that it is unlikely to be as much “better” as the price difference would suggest. If, say, the track saw is 10% better (whatever that means in this case) than a competing brand - and again, I don’t know that it is - but is 50% more expensive, well…
It only really makes sense to me if money isn’t a major concern, is what I’m saying.