The 2011 ones were even easier than that. You pressed a lever then half the bottom case came off, exposing the hard drive and battery. The battery came off by just pulling a plastic tab, the hard drive had a couple screws iirc. The 2012 one that I'm typing on now requires unscrewing the bottom case, but still everything is right there behind a couple obvious screws and you can upgrade RAM/HDD/battery/replace disc drive with second hard drive in 20 minutes if you are working slow. I knew it was the beginning of the end when the 2013 macbook shipped with soldered RAM.