This version of the NUC has surpassed all of my expectations. The included Corei7 processor is beastly, even though its last gen. I've noticed many complaints like: "DOA", "won't boot OS", and "only 1 of 2 SSDs works". I haven't tried the dual-disk RAID function yet, but I will caution anyone reading this - THIS IS NOT A COMPLETE COMPUTER. You must provide the hard drive, RAM, and OS. Out of the box, the only thing you can expect to see when you power it on is a black Intel screen with an option to enter the BIOS/UEFI. Also, there is a checkbox option in the UEFI to turn on/off everything from the USB slots to each of the individual hard drive slots. Please note these things before purchase. I've had mine about 7 months with no complaints. I will note, however, that the swing between min and max processor power is very noticeable. Expect occasional lag if frequently watching HD videos or using heavy-load programs while in "Power Save" mode. Changing processor power management to min=100% solves this. I don't expect the CPU to burn out anytime soon (fingers crossed) since the utilization is often less than 10% even with the mentioned setting and factory overclock activated. I do also notice an audio latency issue. Even with up-to-date drivers, audio has a .5 second delay of silence before its heard. This applies to all audio, whether it be a YouTube video or an .mp3 song. I think neither of these things are worth removing a star. I'll edit the review if I find a fix to the latency.-----------------------------------------------------EDIT 5/04/'18I've done many device and driver updates since first posting this product review, and completely forgot to change it. There is no longer any audio lag, nor are the swings between CPU Min/Max noticeable anymore. I can't recall which Intel update fixed these issues, but I know somewhere along the way these issues were corrected. I now keep my Min CPU @ 5% and Max 100%. HD videos have no issues, audio starts promptly.-----------------------------------------------------