I spent the last 30 days with RB4. Decided to leave Serato and Traktor behind and did the entire night with RB4.
While I have had some crashes before, none this night. That said, I avoided doing the things that had caused crashed in the past, such as changing beat grids or changing CFX during the sets.
A few points:
The lack of a "Played" indicator was annoying. I actually ended up playing the same song twice in a 4 hour set. At approx 2-4 mins per song it's easy to do this. PLEASE add a working "PLAYED" indicator that can be reset (or resets after x hours).
Had some issues when I used SYNC and the sync range was larger than my normal 6%. Caused the new track to go into WIDE. Then when I stopped the other track adn moved the incoming track's fader a mm it moved >10%. Not sure what the workaround is for this. (avoiding sync?)
Other than did, I was quite happy with RB4. I think when the remaining bugs get fixed and Pioneer starts to add some effects and DVS this will be my go-to program. Happy to haev pre-ordered my DDJRX, now just have to wait for it to show up!