I have an Acer Iconia A700. The battery would not recharge from the power adapter. I wasn't sure if the tablet was still under warranty, but I started a service request on the Acer support website, and found out that it was.
In short order, I was given a case number, shipping instructions, and an address for a local service depot (in Burnaby, British Columbia). I packed up the tablet, and sent it off. The next day I received a notice that the tablet had been repaired, and the day after that, the tablet was shipped back to me, and is now working perfectly. Total turnaround: 3 days.
I was amazed and delighted by the speed and convenience of Acer's repair service. Bravo!
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Vancouver, Canada