VCI-400 or Traktor S4

Hey everyone, I've recently had the horrifying experience of having my Kontrol S4 stolen, case and all, while loading my vehicle after a gig.

My natural inclination is to buy a replacement S4 but I really like the look of the VCI-400.

A HUGE factor in my purchasing decision will be based on three things:

1. Sound Quality. I love the sound card on the S4 and usually run it at 48k sampling rate; does the VCI-400 compare...not just in sampling rate/buffer size but also in the sound itself? Does it sound good/rich/warm/fat/fantastic?

2. Foolproof mappings. How does the mappings for the VCI-400 work out for Traktor? Are the platters fully realized for the VCI-400 (like the S4) or does it just default into something less than ideal because it's not a Native Instruments product? How well does it integrate with Traktor?

3. USB/power/headphone output/master output. Does the USB cord "lock" into the slot the way it does with the Kontrol S4? Does the power cord stay securely into its jack? Is there sufficient output/volume from the headphones and the master?