Finished it and all relevant sidequests with max upgrades. One of the best games I've played. Do yourself a favor and play with English subtitles and Japanese VA. The English VA does not do Jin justice.

I tried 3 different play styles:
1. Stagger style - Easy as fuck. You just stagger and slash everything to death by changing stances to match targeted enemy.
2. Counter style - The most fun style. You wait for enemies to attack you and counter. Stances mean nothing if you focus on this.
3. Ghost style - The most OP style. One fire bomb will kill an entire mob if specced right. Boring but hilarious.

"Stealth" in this game doesn't really exist (and I love it for that since I hate forced stealth). The detection rate and range are very low, and enemy areas and groups are sectioned off, so you don't have to be careful at all. Just don't openly attack enemies and you're good.

Visually one of the best things you will ever play on the PS4.

I thoroughly enjoyed just riding around Tsushima and killing mongols for no reason.

Best part is quality of life. It is basically RDR2 without all the annoying aspects. Loot can be picked up with no animation and huge range. Quick travel is unlocked from the get go. Mission rewards are transparent so you can choose what side quests to take. Best of all, the horse teleports to your location when called, so you can jump down a cliff and then call it, and ride off into the sunset. And you can't kill yourself by riding into a tree.

The only thing I could ask for is that the way you play should affect the story and ending. Being an honor-less ghost should result in a different ending than if you played as a (mostly) honor-bound samurai. That would've made this game legendary.