The repair slip (all of which was of no charge to be because of my trusty AppleCare Warranty), indicated that a few components were switched out. Indeed, it does feel a bit different, but the second I cracked open the computer and turned it on, it started to buzz again, albeit, not as loudly. I was disappointed, but at the same time, I am extremely glad I got my computer back safely. It came with a free carboard box and foam packaging as well, which is always a plus.
Edit: Check out the box from yesterday's POTD.