I had only ONE SSD failing on me.
And that one was *drumroll* OCZ Vertex 3 240 GB. They died like flies at the end of their time, and luckily I noticed it early enough.
No other SSD failure so far, mostly Samsung top-line (I think six of them?) some WD-blue (four of them, but only two in active use. WD = Sandisk = their own flash memory). So indeed, the reliability is so good that they get too small instead of fail.