Got my own Phase DVS unit two days ago and played my first gig yesterday!
Setup:
Pioneer DJM-450
Phase DVS
2 old turntables
Mixvibes Cross 3.4.3 64-bit
Lenovo X250 running Windows 10
The thing with Pioneer DJM-450 is that you need to have Rekordbox open so it won't cut off DVS usb inputs (crazy). So, first open Rekordbox, then change the audio setting from Pioneer ASIO to laptop internal soundcard. Next, start Mixvibes and set Pioneer ASIO in it. For Phase DVS signal I used 3kHz Sinus timecode setting.
I had practically zero issues, the only thing was I needed to charge the Phase a bit in the middle of the (5+ hour) gig.