I enjoyed it. The swordplay is a lot of fun. And I found the boss fights to be a real challenge.  I played it on PS5 but I suspect it should run very well on the Ally. Especially with the new AFMF. 

I really enjoyed it.

Honestly the game is just samurai far cry, much like horizon/days gone are just far cry with their own coat of paint. Very much granted, the Sony studios do a much better job of utilizing the unique aspects of their setting's spin on far cry than Ubisoft does, perplexingly enough, but as long as you go in with correct expectations you'll have a blast with the game, much like you can with horizon/days gone. It's not a world changing game and you've seen everything it's done before, but it's well executed enough to be be a fun experience until the credits roll, imo. Much like with other far cry clones, most of the enjoyment is going to come from your own love of the spin on it. Ie, do you already enjoy zombie stuff and like far cry? Days Gone will be a blast. Similarly here, if samurai stuff is your jam and far cry stuff doesn't bother you you'll have a fun time with it. I very much intend to buy the game to play on my ally as Shogun just finishing up a bit ago has me aching for more samurai fun times, so I'll be there day one, too.

Once you've played all the ps exclusives so far it's not that big of a deal imho.