IIRC the 1000E is the 'write' endurance version and the non-E is not, is that correct? Do you have a link / model # to verify?
I've had great luck with Sandisk Enterprise drives write and read and mix workload drives. SOme of the best value capacity drives are the Sandisk Ascend 960GB. I have a couple of the write endurance models and they work great too.
I don't think you can go wrong with this gen or last gen Sandisk Enterprise SSD... heck even their high end consumer SSD are awesome!