KICKR vs Computrainer for power readings & app feedback

Does anyone have a data comparison for the power accuracy of the new Wahoo Kickr vs a Computrainer? I found Kickr vs Quarq & Stages on the DC Rainmaker site but nothing for Computrainer.

Also - are there any apps for the Kickr that allow you to download Ironman courses? Any app feedback would be appreciated. Thanks.