Besides the traits that other posters to this thread have noted.....
Surprise wheelies
Easier to slide the rear in aggressive
Here is what I have noticed between the maps....
If you really start to hussle the bike, in the standard map the motor will start "talking" to you through the throttle body, hard to explain but if pressed I'd say it would be a bit of chirping sound. In aggressive this sound becomes more pronounced.
In the soft or traction map, it has been my experience that you will not hit the rev limiter, in the standard map it takes a bit but you'll get there, and in the aggressive, if you're on it hard going through the gears you'll hit the limiter pretty quickly. And of course, as mentioned before, the performance difference is pretty amazing between 1 & 2, when in aggressive or position 2, the bike wants to "go". Position 2 really makes the top end hook the motor has come on hard. Its great for deep sand and whoops, and when you need to pull the trigger to get by someone quickly.
Position 1 is great for tight technical low traction stuff, the off idle response is way more mellow, and I use it in the aforementioned conditions, and when I start to get tired.
JD jetting makes a fuel mapping device for these bikes, and some have posted about them here. I shared a few emails with JD and one thing he pointed out to me was that for the different map to take, all that was needed was to let the bike return to idle. That maybe true with his tuner, and, I have not tested his theory with the mapping switch.