Looks cool as it is something I have battled with recently, but it always ends up limiting you, just like if you try to use Wordpress for everything, it works 90 % of the way, but the last 10 % will break you!
How do you think GlueStick will limit you?
It is true that whenever you add an abstraction layer, you sometimes lose a little bit of control. That being said, there shouldn't be very many technical limitations imposed by GlueStick that would block you when you get 90% with your project. If you can think of something, please let me know so I can address it.