Picked up the bundle from REI over the weekend. This unit itself is definite a step above all previous Garmin efforts, and the new sensors are pretty neat and much easier to install. There are a lot of reviews out there already, so I am not going to repeat them, but for me, here are some glaring issues you may want to think about before you buy it:
1. The Bike Profile feature is missing. No more odometers for each of your n bikes. Not sure why Garmin deleted this feature, but they did. I emailed them and asked for it back. We will see.
2. Landscape mode does not work, yet. I heard it will be later with software updates, but so far, nothing can be displayed in Landscape mode.
3. None of the existing Garmin quarter-turn mounts will fit this. I had the old Garmin Out-front, K-Edge, and SRAM. All of them are too short. The mount included in the box works but pretty bulky and fugly. The only one currently will work with this is the K-Edge XL which is about $45.
4. To get the most out of this unit, you need to run Garmin Connect Mobile app on your smartphone all the time, including text message/call alerts.