XPS SE vs Aurora R6

First post!

Pricing the XPS SE and Aurora R6 the Aurora seems to be a better deal (better configuration and cheaper). Is the SE more expensive just because of the conservative appearance/style?

Here is what I am considering.  R6, 7700K,16gb hyper, GTX1080, 850 PSU/liquid cooled, 512 GB SSD + 1 TB.  Price is decent with current promos plus eBates 10% back.

Anyone with a similar rig?  Your thoughts? Is the SSD true X4 speed?

Thanks in advance!