I LOVE it! It works MUCH better than the chalk paint I’ve bought at the store and it’s totally cheap to make (and I LOVE it on furniture). I use one of the foam touch up rollers to paint it on–they’re $1.15 at Lowe’s for a little kit that comes with the tray, the roller handle, and two rollers–can’t beat that! The chalk paint can tend to be a little chunky, so the foam rollers work really well to smooth out the lumps as you paint it on.
I already had the paint and unsanded grout, so this project cost me $1.15 for the roller kit (and you can wash the rollers), well within my $20.00 project budget. To purchase everything: the grout is about $6.00, and a $2.00 sample can of paint would be plenty for this. So all in, you’re at less than a $10.00 project with TONS of the grout left over for your future chalkboard endeavors.