I'm running an Agillity 3 since july 2011. The first months i got some problems, but after patching the firmware it's perfectly stable.
There might be some better SSD (for the price) on the market now
A reliability test of a samsung 840 (non pro), might be intressting
http://us.hardware.info/reviews/4178/hardwareinfo-tests-lifespan-of-samsung-ssd-840-250gb-tlc-ssd-update