The GPS is pretty quick loading when first booting up. The maps are pretty well detailed. The 3D maps give you a different perspective of what is to come ahead. You can also have custom settings for different profiles. So if you want to go for a run or go for a hike, you can quickly alter the settings and layout.
It comes with 1:100k ratio map. With this map, you cannot do any routing. With the 1:24k maps which you have to buy from Garmin and only cover regions versus all of US, you can do routing with. Road maps can used if you decide to get those as well. You can load custom maps using Basecamp software. Overall a pretty versatile and flexible GPS.