Gamepass is ridiculous value, especially with the initial offer. Ive had it for over a year and only paid for two months, what with the offer and spending Microsoft points. Outer Worlds, Gears 5, Ori, Devil May Cry 5 all on launch day and there for good. You probably couldn't spend £7.99 a month bette,r in terms of gaming.
The main problem, and it doesn't affect me as I own copies, is that youll really need to invest time in games like RDR2, GTA 5, Fallout 4 because they have a finite amount of time on Gamepass, before you know it you're half way through a game and it disappears. Think you get like a months notice.