Build-quality wise the unibodies are really as perfect as I've ever experienced any machine to be. Simply amazing. BUT, the black plastic hinge cover is cheap and creaks as soon as I grab the computer or open the display. I opened her up to see if there was anything I could do to reinforce it or something, but I didn't want to mess with it. Quite a few seem to have this 'issue' and I thought maybe somebody has figured out a solution? Such a shame on an otherwise perfect machine. I would have preferred the same kind of rubbery plastic that was on the old generation MBP. Anyone?