Pros: extremely FAST on HyperV server. I bought it to use it on x99 platform with 128GB DDR4 board to have Virtual Exchange, SQL, web servers and MySQL servers on the same server. I must admit, this thing is extremely fast. the only gripe is that it wouldn't go your regular 2.5" cover in your casing, but still there are many mounting options. You can buy 2.5" to 3.5" brackets for $3 and mount it correctly. PCIe interface indeed is a KILLER feature. Price is somewhat high but the performance is worth every penny. Glad i chose it over a Samsung eve 850 Pro 2TB.

Cons: none

Other Thoughts: newer is scary fast shipper.. buy the premium account service, its well worth it..

Pros: Fastest NVMe on the market right now. Verified over 2GB/s reads and over 1GB/s writes. Who needs raid-0? The number of IOPS this thing supports is so high that you'll never stress it in a desktop environment. Intel's SSDs have also been the most reliable in my experience and as shown online, and so I have no fears about this drive having any issues in the future.

The 2.5" form factor means I don't have to install a PCIe card that would block airflow for one of my video cards in SLI.

Cons: Mega-expensive, and I would have bought the 800GB variant if Intel had offered it.

The 15mm height means that the SSD mounts you have will not work if they assume the more common 7mm or 9mm heights. I had to install this drive in a 3.5" bay.

Other Thoughts: Have you heard of the 8639 connector before this drive? Neither had I. Will the connector last as a standard, or die off in a year? I'm not considering this a con since it's all speculative, but you have to wonder.