After being a huge fan of Xbox 360 and buying a launch Xbox one, Microsoft lost my support between forcing me to purchase a Kinect and then abandoning support, and the completely broken launch of master chief collection.
However, game pass has completely brought me back. I'm a huge fan of PS4, but if I only had to buy one next gen console it will be the new Xbox, solely due to game pass.
Without buying anything but the console, I know that day 1 I'll be able to play their flagship game, Halo Infinite, and probably a few other launch games. It makes it even better than by being a member of Microsoft rewards, I can constantly afford game pass ultimate without spending a cent.
I really appreciate what they're doing now and I say this as someone who felt completely burned by Microsoft at the start of the gen. Just in the past week I've been playing Ruiner and Shadow Tactics. Two amazing games that I probably would not have checked out without game pass.
And even excluding all the amazing indie games and other games, just having Gears 5 ultimate at launch covers the cost of game pass by saving me from buying Gears 5. And I wouldn't have even got early access if I bought the normal edition, but I do with game pass.