It was free on PS plus ages ago and I added it to my library. Just afew days before PS5 launched I gave it go, played about 4-6 hours and I was enjoying it, but once I started doing PS5 stuff I didn't go back to it.
It's got all the usual open world stuff, leveling up, areas to clear by taking down the strongholds, secrets / collectibles to find etc and fight mechanics a little like the Batman games, along with vehicle combat.
If you can get it cheap then I think you've little to lose. I just spent £20 on Chaosbane as I was in the mood for a Diablo type experience - let's just say, I'm a little underwhelmed with it. Pretty bland stuff so far.
Was enjoying subnautica a lot, but it was also really creeping me out and I've reached a point where I feel like I want to stay out of the water, which isn't very productive in terms of finishing the game