I despise this stuff with a passion. We have it to use at work and I much prefer the JAPONESQUE Makeup Brush Cleanser, that one thoroughly cleanses all makeup out of the brush where this one feels like you are rinsing it with water.
That's around $19.00 and Mac brush cleaners are sound $16.00. I don't prefer either one but the Mac one is less expensive and they both work the same in my experience. They are pretty similar in price but I would say go for the Mac one over that oen