Mine gives me grief every now and then. The worst issue is when you are listening to the radio and then use the phone. It starts dialing and as soon as it connects with the other person it disconnects the headset. Then it switches to iPod and then some how it is now at full volume. That has happened to me about 20-30 times. Even when you hit the headset button on your phone you still can't use the handfree, it is connected but it doesn't do anything. You have to switch off the car for about 20 minutes for the stupid thing to reset.
My one has also Green screened about 8 times. It's nice to have a different colour change when an electrical device shits itself. Blue screening is so outdated. What I have found is that you can't do more than 5000kms in your car in one go, otherwise you will green screen your MyLink. Usually it fixes itself after about half an hour of driving with the green screen and it does make long interstate trips fun. You know you will be bored out of your brains at some point, not even able to listen to the radio but you never know quite where you will be when it happens. Perhaps it's a safety feature Holden introduced to keep you alert.