It takes some getting used to, but it's a great alternative to wearing bras!
I did have a little problem wearing it, as it kind of detaches because the edges don't really fit well, no matter how much I try to stick it back or adjust it. Not sure if I have yet to find the "sweet spot" to get it to fit properly, or if it's just me.
I followed the instructions properly, so I am not really sure why it detaches. Maybe I should try getting the 8cm one and hopefully it can fit better. Other than that...