I think that the simple answer You receive, still it's too soon to give any of the statistics, the percentage of defects and breakdowns are everywhere. Throughout the Internet there are reports that they break, but what is the percentage of the total number is hard to say. Here's a relatively new article: the SSD reliability lower than disks?
. One of the comments says about the third change, in the short period, but there are plenty of people who have everything works fine on the same habré (met comments not only on desktops, but on servers).