The auto hand brake is a bit "slow" in my car.
For example, once I stop, turn off the car and exit, the auto brake is still "working", thus the car rolls a little bit before it actually holds still. Freaked me out a few times before I got used to it.
Also, once it auto engages, it allows you to just enter the car and drive off, because once the car feels a the engine power it automatically disengages the hand brake. Sounds great in theory, but once every ten times, it doesn't disengage automatically, so I'm stuck trying to take off with the hand brake on.
A friend has a Hyundai qashqai, with a similar auto hand brake, but his is 10x faster to engage and disengage and never forgets to come off.