http://www.anandtech.com/show/5508/intel-ssd-520-review-cherryville-brings-reliability-to-sandforce shows that the Intel firemware for the controller is different from other sandforce's and they DO invest in improving it. I'm not saying its as good as others.
Either way I went with a 256GB Samsung and have been very pleased with it.
Either way I went with a 256GB Samsung and have been very pleased with it.