Ordering is the rational thing to do if you're interested in these.
Best to judge them for yourself and then return them if they don't meet your expectations.
Waiting for reviews is ok too, though people seem to lose their minds when it comes to Apple (both for and against them). So the reviews are probably going to be even less useful than normal for headphones.
What's wrong with preordering? I bought them the moment they went up in the Apple Store. If I don't like them, or can't justify the cost, I've got about 3 weeks to return them. No problem.