I absolutely LOVE optimizely. But I have to say, to me the new results page takes a step backwards in terms of usability.
The table that appears on the top of the old results page summed the most important metrics quite nicely. I could immediately see conversion differences and the number of visitors on each variation in one place. Now this information is scattered across the page.
To compare variation performance for different goals you now have to click the show button, whereas before it was immediately shown.
Even small things like highlighting in red/green whether a variant is doing better or worse than the original is no longer used. It's a small nuance, but makes a big difference in my opinion.
I guess those are relatively small things that can be applied to the new design. I sent some feedback directly but didn't hear back (yet).