RealTechniques Miracle complexion sponge

I was just talking to my friend on Sunday how funny it is we change our makeup routines. We start with applying our makeup with fingers, then with foundation brushes, flat kabuki brushes and now the newest hit is sponge. I was a big sceptic and if you would ask me after first use, I hated it. But I converted:)
I have to confess that I haven't tried the famous beauty blender, just the cheaper versions which normally didn't work well, but found the RelTechniques complexion sponge which I absolutely love. 
I love the shape with which I can apply my foundation and concealer without cutting any edges. The result is better and easier than with more brushes that I would have to use. 
The used sponge on the picture has been abused for few months (I am not playing around with it, I want to see full potential;)) and the little piece is missing because I was really late doing my workout in the gym and was extremely rushing doing my makeup. Otherwise it was holding perfectly fine. I have heard that some people were having troubles while washing it, but I am very satisfied.
This has been my miracle worker for months and all RealTechniques products I have tried, I loved so far. Samantha Chapman seriously knows her stuff.
You can buy the RealTechniques Miracle complexion sponge here for £5.99. (the Boots customers gave 6/6 stars:))
What is your favourite application of foundation?:)