So, in the end I opted for the expensive one, however my advice at the moment is to hold-off buying any alternate HU for the Hybrid version, unless others have had a better experience.
Initial issues are:
1) the at the replacement facia has cut-outs for the non-hybrid gear selector and indicators so needs cutting / modifying to make it fit.
2) first trial fit (without mod to facia) is the car emits a continuous beep when I try to lock it, so looks like there maybe an interaction with the central locking / factory alarm - no time to look at this further at the moment,
3) Factory 360 camera not working, but this may be my fault / not hooked-up correctly