I've only tried twice to use the usb console connection to work. I believe I got it to work once with the Cisco drivers but it was very convoluted.

Personally I prefer the older serial connection better.

C2G / Cables to Go 26886 USB To DB9 Male Serial Adapter, Blue (0.45 Meters/1.5 Feet) by C2G http://www.amazon.com/dp/B000067RVJ/ref=cm_sw_r_udp_awd_RY-ftb0S64TBE