It's ok. You know what's better? Suunto Movescount. You can make the map full screen if you want. The line on the map is color coded; you can change whether red means a high HR or a lot of watts or that you were spinning really fast at that point. But it's just much better and especially the relationship between the data and the place on the map the data applies to is a lot more obvious and easier to tease out.

It'd be great if Garmin Connect would even show zones in the heart graph, let alone some way to visualize training load, and total elevation gain in the course builder. (I could go on.)