Based on what I've seen so far, I like the ACU. I'm an army brat, and remember well the hell that poor SGT Dad experienced keeping the old OD fatigues looking good. These new unifirms are built for fighting, not standing parades on the Polo Field at Fort Bragg.
I wish we'd had something like this when I was in the Navy. The pockets, collar, fit, and ease of maintenance would have made wearing the uniform a pleasure instead of a chore. For the record, the only Navy duds I liked were the Crackerjacks; the Popeye suit (i.e. dress whites) was tacky, sweaty, and impossible to keep clean, and I utterly loathed dungarees. (Prison clothes — that's all they are.)
And of course polishing boots is an utter and complete waste of time, no matter if you're at sea, ashore, or in the air.
Some squids back on the 'Prise got to wear Poopy Suits and ballcaps every day, and I envied them (except when they had to use the head); at least in overalls you look like a technician instead of an inmate at the state lockup.
If I were CNO the standard enlisted Navy uniform (at sea at least) would be something like the ACU, only in gray, of course. Otherwise, the at-sea UOD would be the poopy suit, ballcap, and sneakers. On the pier and ashore it'd be a modified Popeye (made from polycotton instead of G.D. polyester!) and the dixie cup for everyday wear, crackerjacks for dress.
Last time I wore my tropical whites, some butt head asked me where my ice cream truck was.
Sailors still fall overboard. You don't want camouflage at sea, especially camouflage that will blend in with a choppy sea with white caps.