While waiting for NAMM tomorrow I thought i'd check out phrase detection. I ran a few of my top 40 (pop) tracks through it as well as some tech house. I picked tracks that were very clear eg. intro verse chorus verse chorus outro. The software was very much off, but seemed to miss the mark by about 4 beats. So in the middle of the verse it'd choose chorus. I have hotcues set at verse 1 chorus and verse 2 so i could easily see where it was off too.
For the EDM track, it was also very much off. For example it picked chorus in the middle of a buildup right before a drop.
Personally I have no use for phrase detection and automix, but figure it may be good if I use the lighting mode as I would want lighting to change with each musical phrase. Hopefully the algorithms get better.