It depends what you want. If you play on console and PC then maybe if you also like the games offered. And maybe even cloudgaming on a mobile phone or tablet but that's often only possible with a controller.

For me the gamepass is great cause I like playing on pc and Xbox and I share it with my girlfriend, so there is always a game she or I like. And a big take away for me is the "demo" mode. I have really bad motion sickness, so I can't play a lot of games. But the bad part is, most games are great the first couple of hours cause it's mostly a tutorial area and these often are better then the rest of a game. So even if I'm allowed to get a refund if I played less then 2 hours, its mostly 3-4 hours after the motion sickness startes. And after that I have lost 60-80 bucks for a game I can never play again. And with the gamepass I can try a lot of games I'm not sure I can play and can just stop if it's not working, without loosing extra money. I tried so many games in the last months I wouldn't have bought and some of them I can play a the way till the end. It's great!