Using Serato DJ 1.6.3 currently with an SL4, Dicers, Pioneer DDJ-SP1 and Technics turntables, and apart from a solitary random Video crash that didn’t stop music playing, seems very stable. For Windows users, you need to turn off all other services as bad/poorly written drivers can cause DPC latency. For me, the culprit was Windows Update, I also removed a lot of Vaio Care products from my new notebook. Runs very well! System stats for the curious:
SONY VAIO Fit 15E SVF15329CW/W with 4th gen i5-4200U dual core/4 thread @ 1.60GHz(Turbo 2.60GHz)
Windows 8.1 64 bit / 8 GB DDR3L SDRAM / NVIDIA GeForce GT 740M 2 GB DDR3
Hitachi 1TB HDD / 15.5″ LED Full HD Touchscreen (1920×1080) / USB x 4, HDMI x 1