The brush set is cute to me. I have it sitting on my makeup vanity and I love it. The SE brushes are like any other SE brushes that MAC has produced. Of course they're not the same quality as the regular brushes...but they're good for travel, for your purse and they're good for beginners to try out a lot of brushes at once before buying the regular sizes. Also, they are NOT smaller than the other SE brushes MAC has produced...they are the same size.
The brush cup wouldn't be ideal to hold regular sized brushes because of its size but I have my HK l/g's and l/s in it and its cute for that. I needed an extra container for lippies so that's it for me!
HTH!