So i finally got this game a few days ago. As a big fan of Rez and all the other lightshow type games, i knew i would love it going in. And i was not disappointed!
I'm playing in a blacked out room on a 100" projection screen, with either big headphones or a nice sound system (shame about the lack of 5.1 by the way). SO MUCH FUN. I just played through eye of the duck and was completely hypnotized by the end. It was beautiful! It's probably also relevant to mention that i've been super sick for like two weeks, on various meds, and haven't been able to eat much at all, which made the whole experience so much more crazy.
I love that this game has the pretty psychedelic visuals and the dynamic music, but then it also has the gameplay mechanics to totally back all that up. I love Rez, but i get it when people say it's all presentation on top of very simple gameplay (though i don't agree). Dyad, however, really had me puzzling with the mechanics, and constantly learning new ones too. The gameplay stands on its own and would likely even be fun without the awesome presentation. Well done i say!
Hopefully it will get some new attention on game of the year lists soon, so more people play it. The bombcast and 8-4 cast were all hyped around release time but it seems like they quickly forgot about the game.
EDIT OH I FORGOT TO MENTION: i LOVE LOVE LOVE how the menu music builds layers and changes depending on what you select and how you move the cursor. And also how you can manipulate it by hitting various buttons and the sticks. SO COOL. Developers: When i'm already having fun on your menu before i even start playing the game, you're doing it right. Ridge Racer 7 also did this, (music layers building up as you got into deeper menus) and i remember making guitar sounds with the menu for Everyday Shooter as well. That kind of sense of style and attention to detail is much appreciated.