This is a very popular drugstore makeup brush, that I've heard people recommend time and time again. It's common knowledge that there are a lot of duds in the drugstore as far as makeup brushes go and I can admit that the e.l.f studio line is exceptional for the price point.
I've had this for several years - not with extremely frequent use though - and it's held up quite well. The bristles are still soft, dense and tightly packed, and the handle has only slightly loosened up, as is expected, nothing that makes it unusable though (besides if it detaches at some point it's not difficult to glue it back together). One maybe small gripe, is that when you wash it you can see some black-ish dye coming off from the bristles, so for someone who uses this on the daily and consequently washes it very frequently it could be a bit of an annoyance.
My personal problem with this makeup brush is that I don't get much use out of it because of the shape. I know many people like to use it for foundation application and although I've tried that in the past semi-successfully, I find it a bit too big and like it soaks up my foundation. Maybe it's better suited for people who enjoy thicker, more high coverage foundations but for someone like me who rarely goes down the heavy coverage route, it's a bit redundant in my collection.
I've also tried using it for powder but again, the flat top doesn't really allow to get that light layer on that I want. But if you prefer packing on the powder, this could be great.
So overall, it's a well-made brush that I think serves people who prefer high-coverage better. If you like more liquid and natural finish bases like I do, it tends to soak them up. I also think that a more rounded or tapered shape would help more for those who like a simple dusting of powder and not to completely mattify their face.