Amazing! I've been using this plugin for a long time, on a good number of sites. I love the GUI builder for the theme options in the background. It makes the learning curve so simple, and implementation quick and simple. Love that.
It can work with custom posts, users, posts, theme options, and has a lot of power packed away. There's plenty of little UI aspects that could be improved, better date picker, color pickers, etc. So it won't be for everyone. But I highly recommend it, and certainly give it a test run!