I own many Eco Tools brushes. Probably most of them actually.
I have been very happy with most of the brushes I've bought.
The only one that I've ever regretted purchasing was the stippling brush, because it sheds like crazy if you use it with foundation. I use it with powder blush now, and it works fine with that, but its really not what I bought it for.
The rest of them work great. My favourite is the kabuki brush with the long handle. It was only $10, and it is very dence for a drug store brand brush.

Love Ecotools brushes! They are very soft and inexpensive. they are also well made I've never had a handle come off after 3 years(and going) of use and no shedding or dye leaking when washing.

Their sets are a very good price and now most walmarts in Canada carry ecotools.

LOVE LOVE LOVE LOVE LOVE... these brushes are great!!! They are so soft and well made!!