I've actually never listened to them, I'll fix that soon. :)
As for me, I got a used copy of Projecto Crossu Zone! Project X Zone a week or two and it happened to be the extra special deluxe edition thing with the soundtrack disc and the artbook and poster (all for 25 bucks, heyo!). It's not exactly a great OST considering most tracks were just kind of meant to play for half a minute while Dante and Dmitri and Arthur or whatever other sick crossover team you happen to be controlling beats the crap out of something before your turn ends and you switch to the next team with a new track, but it's nice to see underrated video game tracks like Ultra Violet get some love and another iteration of Devils Never Cry is always a treat to listen to. I know with such a massive crossover between Capcom, Sega, and Namco there should be more for me to talk about than DMC, but you know how I am.
I've been checking out the sequel's OST, though, and damn. There's some of those funky OG Yakuza tracks, and also there's this remix of the final boss theme of DMC3 that's basically just all the best parts of that song and it's just so powerful.