I discovered stencyl about a year prior. About six months ago I picked up Game Maker and hated every minute of it. The software fought me on everything. I had my doubts because you guys lacked a proper marketplace, and there wasn't any clear networking modules (some posts said this was unfeasible with stencyl.)
Push forward to a week ago. I lost a bunch of work to a crash. I dreaded the thought of starting over from even a *recent* backup and thats when I realized it wasn't me that was the problem -- it was the development environment.
I took the leap and moved to stencyl. What took three, four days to implement in GMS only took me a night. The change blows my mind. Things that I had wanted to see (such as a layer-based tile editor and collision shapes) are suddenly just..there. OOP is now a breeze, instead of trying to hack together 'something' in GM and fighting against their half-baked, half documented datatype systems.
More to the point I refuse to be badly dinged again (hundreds and hundreds of dollars) for simple exports. I like the price structure of Stencyl, how I get a guarantee of updates because you guys charge yearly. It means the tools I'm learning will still be supported down the line (instead of getting bought up by an online gambling outfit and potentially shutdown, or unsupported like GMS).
Stencyl isn't good. Stencyl is *great*.