Really wanted to love Windows 10, but after a year of struggles and compromises, I've gone back to Windows 7. Windows 10 looks as if it was designed for tablets and phones, but I'm running a desktop. I want solid desktop applications, not stripped-down Windows Store "apps." Even a year after its release, the OS feels unfinished. The Windows 7 Media Player puts Groove to shame. Edge looks ugly and feels crippled. Settings are a confusing mess.
On the plus side, the Windows 10 (clean) installation went smoothly, with the OS installing most of the required drivers. The only drivers I had to manually install were the chipset and the Marvell SATA drivers, which I downloaded from the ASUS website. However, the hard drives I had configured as RAID 0 on the Marvell SATA ports showed up as a removable device. None of the rear USB 3.0 ports would connect with my card reader or external RAID device. I had some issues with two Epson multifunction printers, but driver updates fixed that.
What really made me throw in the towel is that the eSATA connections in Windows 10 were flaky. My external RAID 5 drive kept disconnecting. Eventually, it became corrupted to the point where the system refused to see it. Windows "chkdsk" couldn't repair the damage. The MFT was wiped out. I managed to recover everything using EaseUS Data Recovery, but that took two days of nail biting. Maybe I was just lucky, but these issues never occurred in Windows 7. That's the OS my hardware was designed for, and frankly I don't see much advantage in "upgrading."