Tried the image with the new path tracing, definitely a big difference! It glows in comparison. One big thing I noticed was the lighting on the tree trunks, really shows just how much more indirect light there is. Definitely good for shady forest scenes compared to the old ray tracing.
The quality setting are much lower than the original, in resolution, detail, and AA(although I did use the new robust sampler). The render took probably three times as long however. I look forward to when path tracing is better optimized because it makes a world of difference in quality.