I still haven't finished it, despite trying my hardest. In the early days, the game is great: you enjoy the roadtrip phase cruising about and helping people. But then someone asks you to cross the continent to pick you up a tomato... it's ok, fast travel will save me. You get to talk to the bros and help them with side missions. But then Gladio wants you to spend a good 20 minutes catching one fish... ok, well, I have a controller, I can just rely on the vibration to help me catch it. You invade bases, kill Imperials with no real direction or discernable reason. But then you're forced into some terrible attempt at a stealth minigame.

Drive yourself? Great, your car is actually a train that runs on wheels and stops every five seconds at night.
Dungeons? Can't save mate, good luck if your PC crashes or (god forbid) you don't want to finish it in one go.
Exploration? One of your dudes is blind so he's gonna go ahead and slow you down now, have fun with the terrible pathing.
Late game? Here have a dreadful attempt at a horror minigame for some unknown reason with some lazy jump scares in an endless string of the same corridor and props over and over.
An epic bossfight? Enjoy holding B and watching what should really have just been a cutscene for all the effort it takes.
And one of the most frustrating is so basic... want to pick up that item? Enjoy jumping around it excitedly for a few seconds, because some absolute clown decided to tie it to the same button as jump on your controller.

It wasn't anything like what I expected. While the characters are cool to hang out with for a while, they end up being one dimensional. The story doesn't draw you in whatsoever, stringing together meaningless quests and events with overly straightforward Hold B and occasionally dodge combat. Any attempts at an emotional moment is left lacking any sort of feeling as you feel no attachment to anyone but the four people in the car at any time, and even those barely. The soundtrack isn't at all memorable. It tries to pretend to be open world, but you're railroaded through the story for most of the second half.

If it's on sale, sure. Just buy it as a road-trip simulator and don't expect a Final Fantasy game.