I have had to return my Extreme with a screen fault, but I also noticed a buzz as mentioned by others, and have also been concerned over the time it takes to charge.
I was really happy with the Extreme, and hope that mine was just one of those machines and hope when my replacement arrives ( ...), it will be perfect.
I noticed others have had faults and had their Extreme replaced. Starting to worry that it may be a build quality thing.
So a quick straw poll, to try and see how many good Extremes there are out there versus the faulty ones being reported.