I have used it a bit more now, and have played around with the 2D/3D north up/track up display options. The 2610 had only 2D map display, and you could choose between north up (north at the top, like you would usually read a map) and track up (the way you would orient a map so that a left turn will take you towards the left side of the map).
The 2730 has 2D north up/track up and 3D track up display options. Maybe my pilot background is showing, but I presonally prefer the 2D north up display. Positional awareness is what I taught as a flight instructor and understanding that a left turn while heading south takes you to the right side of the display is second nature.
To each their own, you can easily switch between the display modes and make your own determination.