This is an absolute gem of a bra and I cannot tell you how many people I have recommended this too.
It's comfy, holds your boobs in place and looks good - you don't get much better than that...
The racer-back option is a really cool feature but I really don't use it all that much as I find I get enough support without it. However, I don't do a lot of high-impact exercise like running, which does make a difference. I suspect if I suddenly became possessed by a demon and decided to start running, I would utilise the racerback option more.
I find the sizing very generous here - I normally wear a 28HH and I find the 28H fits fine and even when I was a 28J, I could still wear the 28H with little sizing issues.
As a final bonus, I just like the fact that it looks good enough to wear as a top - a sports bra is the only type of bra I don't want to look like a bra and this does that really well.
I have no doubt that when this current one wears out, I will be back to purchase another.