Machine at a university with the hard drive failing (would not install OSX 10.9). Do a memory upgrade at the same time.
No problems - the glass is awfully thin though and it would be nice to know it was held by magnets.... Took less than an hour.
Maybe swap around steps 6 and 7 as the display data cable is shorter than the LED backlight cable. Use a magnetic tipped screwdriver as the screws holding down the display can quite easily fall into the unit. I magnetised mine using the magnets holding the glass.
2 TB 3.5" Hard Drive
PC3-10600 2 GB RAM Chip
Heavy-Duty Suction Cups (Pair)
TR8 Torx Security Screwdriver