viperGTS, I see your MBP's peformance issues have driven you here.
I bought a couple of the EVO 250 GB drives when I got my refurb 2012 MBP a couple of weeks ago. Then, and still now, there was a $45 difference (on Amazon) between the EVO and the Pro but yes, you do see a fair amount of people who have drives that have died early (didn't look at the Pro to see if there were similar issues). Considering the drive itself was $78 (it's a few dollars more now), that's a big difference. For a 512 GB drive, it's not proportionately as large but the difference is still $63. My MBP is not my primary computer so I figured what the heck. For the price that a Samsung, a SanDisk Ultra or a Crucial BX100 goes (around the same price), I don't know that you want to go for the cheaper econo drives.
I have a OCZ Vector in my Mini and have had good luck with it, but unfortunately their main-line drives currently don't reduce power consumption when idle (very important for laptops) (the Trion, which does reduce power consumption isn't very good for the price).