Very impressed with what we saw today. I'm still not 100% sold yet, and I'm not about to run out and buy an Xbone anytime soon, but I'm still feeling much more positive about Halo than I have in a really long time.
There's still some stuff I'm not happy with, like the red-dot sight on the BR (not because I think it means 343 wants to do ADS, just 'cause it looks bad) and the fact that the H5 maps we saw aren't particularly convincing of 343's map design sense, but overall I'm satisfied... for now. I'm still waiting for the other shoe to drop, as it did with H4, but I'm looking forward to trying this stuff out on a friend's Xbox.
(re: medals, yeah, the new ones are pretty ugly but I've honestly given up on caring about those, as long as they're given out like free candy and mostly pretty worthless I can't be bothered to care about what they look like. BUT CAN WE PLEASE GET SEPARATE MEDALS FOR PLASMA GRENADE STICKS AND REGULAR, NON-STICK PLASMA KILLS?)