I enjoyed it for a while, but eventually got burned out on it. It's one of those open world games with so many points of interest all over the map, and I can't leave an area without visiting every single one.
I've tried to go back in the past, but lose interest quickly.
I think the issue for me is that the game came out soon after Sekiro, which to me has some of the best combat of any game I've ever played. Moving from that to Ghost of Tsushima felt like I was slowing down.
I'm currently playing Horizon Zero Dawn on the Deck... it plays great as well. Got a mixture of medium and high settings on the Steam Decks native 800p resolution and it's playing at a solid 40-45 fps.
The only real hitches that I notice are when the game is clearly loading a new area... the game will jump down into the 25-30 fps range. But for the most part it plays really well.
The HDR is also really well done and makes a great showing on the Deck (if you have the newer OLED version). Looking forward to playing Spiderman, Uncharted, & GOW. PS3 was my last Sony console and the deck has been solid for PS4 ports!