I got two and several problems (spread evenly between both):

bt didn't work with wifi, changed the wifi card, but still troubles

weird display dimming when reading white on black and no official patch (can link you an unofficial one)

coil whine

speaker blown (don't eq them)

battery bloated (replaced for free even out of warranty)

hard to get to sleep

very short screws, can get lost if you don't use lock tight after opening it once