Ditto what everyone else said. I'm a bit of a gear hound, so I switched over as soon as they came out and never looked back. I don't really think about them when I'm diving, but now packing and unpacking my Atomic T2 reg always brings a smile to my face. Extremely light and easy to deal with.
But I'm still getting used to the high pressure hose that I got just before the summer diving season. It's much, much thinner than a standard hose and just looks kind of weird. I haven't really found a good clipping method for it since no clips come that small. For now I just run it through one side of a double eye hook with the other hook clipped to the front of my vest. It works well enough, I suppose, but somehow I'm just not comfortable with it. Hard to explain.
In any case, it's highly likely that once you use them, you'll think standard hoses suck by comparison and you'll kick yourself for not making the switch sooner. Kind of like my dog, who loves his Purina cereal but only because I'm too cheap to feed him Alpo.