I'm thinking of taking a leap of faith on GDR3. I'm not worried about the warranty part as service center people are noob and you can easily fool them. I'm more worried about the bugs. Will wait for 2-3 days and see the response from people who have installed it, then I'll decide whether to make the jump or not.
Let's keep the discussion about the GDR3 Preview in one place, guys. That way anyone visiting the forum to find out about it only has to go to one place. You can find out the answer to your question in Mase's thread. You can find out a load more about the GDR3 preview here: Windows Phone GDR3 Preview - Windows Phone Central Forums