Not the author, but I assume the one big pro is being a lot simpler, and the one big con is that it limits the flexibility of the full QT bindings. All in all,

Not the author, but I assume the one big pro is being a lot simpler, and the one big con is that it limits the flexibility of the full QT bindings. All in all, it's a wrapper that hides complexity and flexibility from you. Might be what you need some times.