Wasnt quite sure what expect, but was pleasantly surprised. Im an Avid photographer shooting a lot of studio shots. This app provides a nice way to review lighting and setup, and develop lighting setups prior to entering the studio. The interface is nice but you must spend time to learn its inner workings. I love the 3D view and ability to rotate almost everything, can be a little over whelming at first. Once I learned how to control the interface it was great. Love the ability to change lighting color, not only for effects, but to better see how each light in the setting will affect your subject. Shadows are fantastic; the ability to control shadow affects for your display is excellent. Best to view the tutorial on line, saves a lot of guess work. Great app, nicely done. If you work in the studio, youll find this a useful addition to you studio. Trying think of any improvements; only thing I can think of is continue to improve the smoothness of graphic movements and definitely work compatibility with new IPAD retina screen...looking forward to any updates and improvements.