I have used the invisible bra twice and the pasties several times.  They undergo the washing well and stay sticky (so far).  I have not had any trouble with falling off (I even exercised with the bra the first time I used it).  The fit feels good.  I have a little bit of an issue with the edges of the bra, though.  The edges don't seamlessly stick to my skin, so it picks up lint and sticks a little to whatever I'm wearing, making me think that it will strip off.  Its an uncomfortable feeling, to be worried about losing my bra.  But otherwise, comfortable.