I cringe to think what it is like to work for their support teams hehe. But seriously guys can't we all just get along? Everyone has brought something valuable to the discussion and we don't all have to agree on everything. No need to start flinging poo at each other.
I've had my Vertex2 fail in less than 6 months, and prior to its failure I got a Vertex3 for my mom who also started having identical symptoms (within the first month). I think that's enough for anyone to dump the brand, but I understand there are lots of issues not necessarily exclusive to OCZ too. The tech is still maturing, compatibility across controllers/chipsets/firmware/wtv is far from perfect - so those failure rates are really no big surprise.
I think it's a valid argument to say OCZ has many issues while the M4 specifically has a pretty good track record, suffice to say that countless people will be trouble free with their OCZ drives as well. It's a pointless exercise to argue really. Let's not pick apart peoples statements, it's clear that "half of" was not intended to mean strictly 50%. I got the point.
If the question is, is it worth jumping on an Agility 3 if it's a sweet deal, the answer is undoubtedly yes. Saying should you go with OCZ vs M4 in same price range, well that question is definitely begging for a heated discussion hehe.
You definitely do see people on this forum taking a liking to the M4. I'd be interested to see the latest failure rates.
Edit: it seems the numbers we're looking at are "return" rates, not actual failure rates. That means something entirely different.
This was an interesting read
http://www.tomshardware.com/reviews/ssd-reliability-failure-rate,2923.html