Well, that's a value proposition that you have to answer for yourself, just like being in Club Level.
To me, the seat is just part of it- something one might not know if upgrades at the gate is one's only experience with it. It cuts down on a ton of standing in line.I have RA so this matters a lot to me. There is priority at the check-in counter, at TSA, at boarding, and when picking up your luggage. . I spend way less time at the airport than I used to.
If you're running late it's a lifesaver. One time in San Jose I made a mistake on my flight time and was off by an
hour and still made the flight. Curb-to-seat was less than 20 minutes- I know, because I was watching the clock!
The upshot of it is that it's made flying fun again. My vacation starts when I leave my house, instead of when I get to my destination. And if my destination is Europe, the whole first day is much better because I've slept. I figure flying first class gives me 3 extra days of vacay when I fly overseas!