AeroVolume comes with what looks like a very traditional brush, but Avon claims that it's a unique star shape that "creates vertical lift and even formula deposit". As for the formula, it seems like a happy medium between wet and dry. Let's move onto the performance now, shall we?
The above photo shows what two to three coats of AeroVolume looks like on my lashes. It gives decent volume along with some length and separation, and is also quite clump resistant just as it claims. Application was easy enough (although I did find it a bit difficult to get to the lashes near the inner corners of my eyes) and I was able to wear it all day with no smudging or flaking. It's a pretty good mascara all around and I actually like it quite a lot!