Its in no way unique to the Karma. Any product of this nature will experience 'issues'. Go to Google and type in 'Broken iPod' and see how many bad reviews you read.

Of course, you seldom hear of the people who love their products and have no problems, so it will always seem that there are a higher proportion of faulty units that there actually are.

Nobody phones me to tell me that their PCs are working 100% well