The trackpad click bar of the MBA came loose. This resulted in a loud clack when it was clicked. The Battery wasn't charging properly, in my opinion, and the heat generated was more than I liked to feel. First I called AppleCare tech support. Talked to a technician, and he said those problems do not warrant an exchange. Demanded to talk to a product specialist. After some time spent in discussing, he was adamant that the above issues do not warrant a repair or replacement. He suggested I go to a authorized Apple repair shop. My experience with a licensed Apple repair shop was been bad. The dual processor in my G5 was replaced, and the fans were not reinstalled. So I went to my local Apple Store and an hour later walked out with a new MBA. The Apple Store tech supervisor said the loose track click bar was known to occur. Then he told me the first batch of MBAs were built with a heat problem. So on 2 issues they able to justify an exchange. By the way I have a ProCare membership, $99/year. A great way to get priority attention. He also said that he believes there will be a software update for the battery issue. The difference between Apple tech support, and an actual Apple Store, is amazing. A word to the wise. I am definitely a happy camper. Apple comes through, again, you just need to talk to the right person, ie in person.