change cdj 2000 cdj 2000 for nexus

If you are desperate for the new features on the Nexus? Then yes change. If you are dont use RekordBox and use Traktor, Serato. or VDJ??? Then stick with the MK1

is for use with Rekordbox directly connected to pc

therefore

CDJ 2000 MK1

or

CDJ 2000 Nexus

which of the two players is reliable?

I already have the CDJ 2000 MK1 (x2) + a DJM 2000

I want to sell my CDJ 2000 mk1 to buy two CDJ 2000 Nexus

what are good or not?

@michel > Both sets of players are reliable.