Between the hard drive and memory upgrade, my early 2011 Macbook Pro runs like it did when brand new (maybe even faster).
If you don’t already have the means to remotely connect your new hard drive to your computer, the hard drive/tool kit/hard drive enclosure is the way to go, as it gives you the option to clone your old drive to the new. Once that’s done, physically swapping-in the new drive allows you to seamlessly boot up from your new drive. The tool kit alone is easily worth the extra ten bucks, plus you get the USB hard drive docking station that you can use later with any SATA drive as an external drive (for backup?). Memory was upped at the same time, and it’s like I have a new computer!
Holy cow! I suppose that's how they can make the case that thin. Thanks for the clear procedure!