Well your the first I've seen say OCZ support is good... that being said they do make some decent SSD's... I have an Aglility 2 90GB in my 2010MBP and can't complain one bit... works amazingly. I seen it over and over again, OCZ will delete posts... and it's also true that they got caught over the 25nm thing, which is disgraceful at best... I would personally pay 10$ to get the M4. but not 50$.