Had a Mac Mini i5 before. Switched to the NUC. Understand that others have had problems with the BIOS, but I might have been lucky so far.
I wanted a quiet fast computer to the TV. NUC: one meets this for me. I have not been able to hear the fan yet. Compared with my Mac Mini so it Thu difference when the fan often went off when I eg streaming full HD to your TV from the network. However, the Mac Mini i5 from the middle of 2011, the latter is certainly better.
The installation worked fine. One thing to complain about only and there is neither Wifi or Network works before installing the drivers. So we have to have another computer and a USB stick for drivers so you have access to the Internet. After that, it's easy to download it as needed. Intel had to simple tools that scan which drivers are needed, and then loaded them down.
Have just tested some simple games such as SC2 and Wow and it runs smoothly in full HD.
Also managed to use my key from the MAC (Apple Wireless) without major problems.
Drive with 8GB memory and Pattern 2 Samsung EVO 256GB SSD, which also worked directly.
Installation was simple with good explanations of how to insert the memory card and M.2. Revontuli. Have not bought to 2.5 "SSD yet which there is room for.
Bought a USB DVD that I bootade from to install Windows. Also worked fine.
Overall very satisfied, but everyone understands that provides lower rating because of problems with the BIOS. The only problem I had (guess that's BIOS) is that I can lose 5GHz WiFi network sometimes, but 2.4GHz always works and I run the cable so I do not care so much. Therefore, I have deducted a star. Latest update from Intel (BIOS version 0042) to solve the problems, it is said, but I have not installed this yet.