This was a good idea for me, and saved a bit of money!  I just entered my second trimester and it's been a while since I could button up most of my pants. BellaBand to the rescue!  I was size 4/6 earlier, but gained some weight and size 2 works very well.  I fold it only little bit at the top as I am not comfortable having a thick band around my waste.
My only complain about it is the little rubber tag that is shown on the outside.  If the goal is to make it discrete and hide pregnancy for a while - then why in the world did they place a label tag with the word BellaBand on the bottom of the band?  I had to get my manicure scissors and carefully cut it off as soon as I got it.  For 26 dollars, I shouldn't need to do that!