Just had a play about with Carista so thought i'd share my thoughts.
1. disabled start stop (you cant override it with the button so its off permanently)
2. Enabled alarm chirp (It works but the volume is very low can it be turned up?)
3. Needle sweep (didn't work on the new digital Dash)
4. Soundakor (I turned it off at first and its amazing how much fake noise comes off it, and i can now hear the exhaust crackles much better however the whole exhaust and engine note is very quiet so i turned it back on at 50% mine was at 96% default at 50% i think its still too loud so gonna turn it down further. If i get a res delete in the summer i will be turning it off completely.
I haven't tried the direct throttle change yet and i think ill leave the xds alone.
I tried the direct throttle response, but personally I felt no difference.
I have tried the soundaktor, but for me, it seemed to be either on or off, there was little or no change and then all of a sudden it was off. (although I prefer it off anyway)
I also tried the safety car indicators, but this didn't work, it just stopped the indicators on the body flashing, so only those on the boot lid worked. (i tried resetting the lights in the media system, but this didn't make any difference)