Great unit! Use the footpod and it works super. Looking to get the speed sensor soon. If you're looking to use it as a training aid its more than worth the $$$. Polar after sales support is great too!
If you want to know more about these "cheap" frames spend some time reading this forum: http://forums.roadbikereview.com/showthread.php?t=241785 Im pretty sure it will answer many of you questions and silence a few critics.