Foundation and Concealer brushes are vital tools in your makeup kit. With a concealer and foundation brush, no make up gets onto your clothes/hands (which is always a bonus)..
When you use an Elizabeth Arden brush - you get what you pay for: a beautiful looking dual-ended contouring brush. The name says it all. It took me while to get into using a foundation brush - but after using an Elizabeth Arden on, I am not sure how I correctly applied foundation before!
Its an effortless process, and the brush is perfect size for my makeup bag. It looks good as well as it works well.
The only con I can think of is the time and effort it takes to clean this brush, but that is the responsibility that comes with the luxury having such a great brush in my makeup bag. :)