I had the Moving Comfort Fiona bra and it was the most amazing bra I'd ever worn in my life, so when I needed a new one and all my tanks are racerback, I decided on the Juno.  Hmm.  On the one hand there is definitely serious control here.  The girls do not move and yet aren't squished.  I don't know how they do it.  I can't imagine what the other reviewers are talking about when they say there are no cups.  There are pretty intense cups and a pretty sexy little sweetheart neckline.  For me, it's a little too va va voom and I miss my Fiona which was more straight across the top.  But I don't really want to look like I'm trying to be sexy at the gym.  Alas, I'm also getting the underarm cleavage effect.  But maybe that's because I didn't get a size big enough.  I think they do run a bit small for width and a bit big for cups.  I also think it's a bit stiff/scratchy fabric as compared to the Fiona.  Maybe in time it will loosen up a bit?