Initial parking was easy and I shall use the system again. Just one major problem, after20 hours of travelling ( we stopped over for 3 hours in NY having flown from LA) the last thing you want is to get back to your car to find it unlocked and as the drivers door was not closed properly my battery was flat. I tried bump starting it but the battery was to flat. After a twenty minute wait the car parking guy came with a charger and got me going. He said he would report the incident to his manager, but as that would drop his fellow drivers in it, I bet it was never reported. I realise that if you just think the door is shut , walk away and do not check for the flashing lights, you would think you had locked it, but on this occasion they had not.