When i saw these on the web, i instantly snapped them up, thinking they would be a good investment. I have quite fine hair and whenever i backcomb it it seems to fall flat within an hour or so.
The bumpits are easy to use, however you do still need to backcomb your hair somewhat otherwise the bumpits just falls straight out.
Also, I found that due to my fine hair, you could still see the little prongs through the top of my hair, not a good look.
However, I would recommend them to anyone with thick hair however I would say to use both bumpits when using the product or you'll end up with a rather square-shaped head at the back.