I usually prefer a racer back sports bra because I find it offers better support for high-impact activities like running. But now I'm pregnant and my bra size is changing frequently, so I like the adjust-ability of the Fiona bra. It fits well, washes well, and has adjustable back and shoulder straps. My biggest complaint is that doesn't offer quite enough support for running/jumping, but is otherwise great for walking, biking, elliptical, etc. (I'm a size C).  Overall, a great bra for the price but not great for really high impact.

**** Update to my review -- I bought another Fiona with a smaller band and bigger cup size, and the fit is much better.  Works great for running and interval training, still a little bounce with jumping.