I took that offer and have Professional Studio as well, but I actually work in GM 8.1 (the paid edition). Since I worked in GM 7 for a long while, and GM 8 was basically much of the same with many upgrades and such, it felt right at home. When I opened Studio, it was almost like looking at a foreign program, so I didn't feel like relearning the interface to make my games, when I can probably get all I need for my projects out of the one I'm accustomed to in GM 8.1.