I got this bra in my regular bra size 6, which is one size up from tank size. I thought this bra would fit similarly to the Free To Be bra. However, it is definitely tighter! I guess you can say it's more supportive, but the thin horizontal straps on the back just cut into the skin in a unflattering way. I do have to say though, that my lats have always been broader so it's not uncommon for me to find clothing to fit too tight in the chest area while fitting fine everywhere else. With that said, I also have many different Lulu bras in size 6, and they all fit me fine except this one. So the problem is on them and not on me lol!
Anyway, a little disappointed though! I thought it was going to be great since it has 5 star reviews. Though only 10 people reviewed it so that's not too many data points to make a significant conclusion! Oh well!