before surgery i owned two or three binders from danae and the quality is really fine. they bind fairly well, i guess it would depend on your chest though, and are similar to the underworks binders in both binding strength and material-wise, but of higher quality imho.
I then bought the binder with velcro in the front after surgery (to prevent oedema) and had my girlfriend try it on who is at least a B cup and it flattened her really well, so I guess those with velcro really have the most binding power.
Danae is incredibly nice and helpful by the way.