Recently I bought two softwares. One is ilife and the other is Aperture.
The reason why I bought iLife is the function which can establish faces base on who's in your photos.
But after importing more than 30,000 photos, it occupied huge memory and caused my macbook operated slowly.
Besides that, The faces I established would combine automatically, I lost my effort for that.
So I give up.
I always use photoshop to fix pictures for a long time, but used "sharing edition."
I think that should buy normal edition lately, however I was scared when I saw the price.