Sadly though, they have not escaped the dreaded Sandforce BSOD. A Google of "Intel 520 BSOD" will show plenty of people on Intels forum having issues. It's not a flawless SSD at all, even given the extra validation.
You can see some actual retailer figures here:
http://www.behardware.com/articles/8...s-rates-6.html
0.03% would be very low - I know Intel are quality, but I'd love to see some data to back that up given they've also had issues and firmware updates to solve them. It's not that I doubt you Jo, it's just SSD failure rate is so blinking hard to work out right now