to be completely honest i would go with traktor S4 because of familiarity i use traktor with my mate and i know the format of it all and that and the unit itself seams very solid and unbreakable the main reason everyon uses vynal and cdjs is that whenever you dj you use decks and a mixer not a MIDI controler the vestax VCI100 although you can use traktor with the vestax and It is a breeze to program and its fun to use. It’s plug and play Pros: ·Build quality ·Feel ·LED feedback Cons: ·No 14 bit midi ·Stupid button on the right ·No sound card ·A little expensive when compared to it’s competitors. The Traktor S4 Pros All-in-one 4-deck software/controller/audio interface system based on tried and true Native Instruments technology. Comes with Traktor Pro S4 with new Sample Decks and Loop Recorder. MIDI compatibility for other gear and software, but much higher resolution control between the hardware and Traktor Pro S4. Two analog inputs and excellent Audio 4 DJ-like sound quality. cons No price break yet for licensed Traktor Pro users. Operating on USB bus power alone is not recommended due to dim LEDs. Big-time cue point juggler and button mashing controllerists will probably still want a supplemental “grid” controller. No group saving of sample sets. Not compatible with DVS systems yet (NI says this is coming soon). sorry but i dont know much about the denon ps post up into the into section