It's a contentious issue in the storage world -- despite being without moving parts, are SSDs actually more reliable? Whether you just popped in your first SSD or have had a few, please list your experience here. Let's keep this MacBook exclusive, no Air (where the SSD is soldered to the board). I'll start: 2 128GB Crucial M4 for a month total, periodic beach balls and system hang-ups (pre-EFI update) 128 GB Samsung 470 for about 2 months, no issues. Essentially I'm looking for cases of inexplicable failure. None of the drives I've had so far, although only 3 months experience, has failed. Had it not been for Apple taking so long to release the EFI update, my SSD-experience would have been entirely problem-free.