I'm impressed. So far everything has rendered really fast for me. I also like how it renders the whole scene at once instead of the panels. At least that's how I think it works. I can't see the whole render. Some of it is off screen. With older versions, it used to start in the lower in the lower right quadrant and render panels. It would have to render 2 thirds of it, before you could see anything. And when you did see something, you noticed a problem you didn't spot before you started the render. And that was usually a half hour or more after you started the render. Maybe there's a way to preview the whole canvas as you render, but I haven't figured out how if there is.