Lacking in relevant features.
This is an excellent case study in what happens when a company puts hardware first and software last.
The product management apparently decided to shoehorn in all the features you didn’t ask for and severely compromise the features you actually wanted. In addition it will constantly nag you to buy maps for devices.
For some reason it also decides to not sync data from my admittedly older Edge 305 from time to time. Oh and it also doesn’t sync my heart rate data for some reason.
If you want to use your garmin device during workout and come home and look at your stats this is not a good tool for that. Luckily you can still download the older “Training Center for Mac” software from garmin’s webpage which does what you want and works really well.
Come on Garmin, don’t give in to the slick product management types and stick with a product that actually works. Less is more!
alind84 about Garmin BaseCamp