OK here are my thoughts...
You have put together some good examples since I last checked out the engine, so well done with that. There is also a lot of nice stuff that has been added to the engine
The only thing that is putting me off from going with it for a new project I am starting after the new years is the licensing. Yes, the price is fair. But the 'per product' is what is putting me off.
Right now, it's a toss up between Esenthel or the C4 engine.
I wouldn't mind if the license price was more, but a similar license to what we worked out for our last product with the developer of Power Render 6, meaning unlimited products.
As said, I am not complaining about the price, It's just that the 'per product' is what is putting me off.