I heard so many reviews on the beautyblender and never really believed the hype of it. I just got another well known make up sponge and thought that would be fine. Then I just decided I wanted to get it and I do not regret that one bit. Yes it is fairly pricey but it is completely worth it.
My foundation goes on like a dream and gives it an airbrushed finish which I cannot get with the other sponge or any brush. It is super light and just blends everything out - foundation, concealer, cream highlighter, bronzer and so on. Fantastic little sponge!
My only problem is that mine does take a day or two to dry which is a pain.