MAKE BACKUPS.
Best Buy used to sell those models, and for a while had a huge sale.
Then I read the customer comment section... that technology has some bugs; the newer 520 series fixes them, but the 520 might have new bugs of its own (and the 520 series costs more...)
Keep the receipt, in case you need to make use of Intel's warranty.
But that's prudent for HDDs and SSDs in general...
But for real GB competitiveness, it's still going to be a few years... SSDs are fast, but for long-term use I'm still a skeptic. ..