Camtasia can do HD-level ingest, while the TwinPac is limited to DV quality. The TwinPac is a great device, so long as you understand you have limited resolution. The remote allows you to zoom to a predetermined quarter of the screen, which is a great way to work, just realize you're using a lower rez at all times so that you use the zoom as much as possible, you'll be very pleased.
In other words, we really like it.