One thing I’d hope for is better performance. For some reason, C1 can start off acceptably fast when processing an image for preview, but after a while I can be sitting there staring at the spinner for up to 30 seconds waiting for the preview to update. It gets even worse if the image is rotated or has keystone adjustments applied. I realise I can’t expect much from my 2010 low-end MacBook Pro, but both Aperture and Lightroom are significantly better in this regard.