Decided to give these a try after being tired of the under wire types and discomfort after a long day.  Found decent reviews for these in particular so made the purchase.  The bra itself is pretty awesome being very supportive and somewhat attractive.  The cup size, at least for me, was perfect.  The band size was a little snug though I believe that to be because it isn't "broken in" just yet.  I think a couple cycles through the washing machine will help.  The only real issue is after about 9 hours or so, the bottom of the band started to roll up so that I had to almost remove it and put it back on.  The tag also kind of bothers me which is a first with any bra.  Needless to say, the bra isn't perfect but does do a good job and is somewhat comfortable.
Update 03/19/13: I bought the "lacy" version of the bra which does look pretty nice and is very supportive.  The problem is either the lace or the material difference between the "lacy" and "non-lacy".  The "lacy" version is VERY uncomfortable.  I constantly feel like I am being poked or scratched.  I do love the way it looks but the lack of comfort makes me want to throw it away.  This is almost worse than the under wire coming loose and poking.  I've washed these a couple times so far so maybe a few more washes would help?  I'm not really small though not super large either so I can't see this being an issue with weight.
One more update 03/25/13: The secret to making these more comfortable is to throw them in the dryer.  I never used to dry bras in the dryer under the impression they wouldn't last very long.  Decided to try the dryer because I really wanted to like this bra and ran out of other ideas.  The dryer seems to have made them more "lived in" (kind of like jeans after washing/wearing awhile) and is definitely more comfortable.  They are snug and the cup size does seem pretty accurate so I will continue to wash and dry in the dryer instead of line dry.  I still have some discomfort in the band so let's hope the dryer can resolve that as well.