For me it would be easy.
Nexus.
Why buy something which is now superceded by another mode. I know there have been some probs for some people, but I have found them fine and Pioneer are making sure they check out the firmwzard and update as needed.
Plus which a lot of 'faults' which get posted on here are due to not analysing through Rekordbox latest version or not understanding the players. The slip mode and quantise can seem strange to people (they did to me) because they take over control a bit, so for experienced djs they can feel funny due to the deck not starting as soon as you press play. But that is bound to be the case unless you hit it bang on.
They sound great and work great.
A