When did you get the DAB mate... can't see a thread for it?! How far have you got with it?
The biggest changes have been the drivability and throttle response. I know it sounds a bit cliche but the map smoothed out a lot of the flat spots throughout the rev range (look at the power curve on the dyno graph ^^). The ignition is advanced slightly, so the engine sounds slightly different.
Although the above are all advantages, its hard to ignore the <10% power/torque increase from the map; particularly when you're parting with £230!
In my instance, a remap was the remaining piece to the stage 1 puzzle. I'm planning to supercharge her next year, but this means another remap - I did question whether the first map was worth 6months, and I decided yes!
Hopes that helps!