If you're a Millennial, this game is a time capsule of your own memories, an actual drive down memory lane. It took me a couple playthroughs to understand why the setting is so vague - the currency symbol is fake, the town names are an amalgamation of Northern and Western Europe, so you could be anywhere from the west coast of Canada to England to Germany to Scandinavia - no setting is defined. Even the names of the people you meet are not names but descriptions, eg. The Kid, The Bride, etc. I found this clever little obfuscation allowing me to imprint my own experiences onto the game, with memories people and places I haven't thought of in 20 years all flooding back. The generality of everything allows a huge audience with a common lived experience to connect with the game on an extremely personal level.
As for gameplay, nothing is groundbreaking and you've likely seen most of the mechanics before, but the game exists as a canvas for you to paint your own memories onto. It's really an extraordinary masterpiece. The strongest piece of the design is the freedom afforded to the player - you are given goals, but you don't need to complete them. You set off originally to get to a festival within a month, but the game lasts for 3 months and if you don't want to go to the festival then you don't have to. Nothing is forced, everything is at your discretion. Do drugs, or don't. Buy guns, or don't. Pick up hitchhikers, or don't. You won't be punished for anything except careless driving - but maybe don't get pulled over by the cops when you're drunk, that's a pretty tricky combat.
Special mention for the soundtrack, absolutely incredible. Honestly the price of the game is worth it for the music, I have no idea how to developers found all this great obscure music, most of the songs in this game have less than 10,000 plays on Spotify. Cruising around in your car listening to this soundtrack is a distinct pleasure.
Overall, 10/10. Even 11/10. If you get the vibes in this game you will have an extraordinary experience.