I have ICT, not ICT Pro, and haven't experienced any of the above issues (except that the parking sensor is not on full-time, but that seems to be intentional on Jaguar's part).
Only complaint with the ICT system is that it takes about 30-45 seconds from starting the car to full boot-up of the system (where I can change radio stations, etc.). Interestingly, it co-incides almost exactly with the time it takes for the engine to fully settle from cold start (when the RPM's drop below 1000). So, basically, I start the car and wait for the engine to settle, and by the time I'm ready to put the car in gear the ICT system is fully up.