Here is a more detailed comparison
Pics:
From UEC site with specs
http://www.uec.co.za/index.php?option=com_content&view=article&id=55&Itemid=54
My pic
http://mybroadband.co.za/photos/showphoto.php?photo=14107&cat=500
As you can see the UEC is slightly longer then the Pace
Some differences:
UEC processor is slightly faster, the overall performance & remote response is a little quicker
SatCR port is LNB 2, Pace has it on LNB 1. Makes no difference to anything though
HDCP problems, the UEC has not given me any, the Pace does sometimes when changing sources
RF output, UEC has a much better RF output
Boot up time on UEC is half the time of the Pace
Video stutter, this is the only real downside of the UEC. It occurs during playback & in the buffer. After fast forwarding the video freezes for a split second & the audio goes out of sync before it corrects itself about 5 seconds later. Small issue but quite irritating
There were a few other once off issues so at the moment I still prefer the Pace