Excerpt: As said above, I've built close to 50 computers with this kit and the i3 kit, and out of all of those I have only had to return one that had issues with the power cable connecting. I absolutely love these kits and couldn't recommend them more. Even the i3's are more than fast enough for anything you'll need, short of video games or photo/ video editing. Most of the kits that I built were used to replace an entire office's computers.
Summary: I bought this to replace an old Dell XPS laptop I was currently using as an HTPC. The laptop was beginning to struggle so I figured a dedicated HTPC might be a good option. I haven't had much of a positive experience with integrated graphics in the past but I heard good things about the new i5 with HD 5000 graphics so I decided to go with that option.
Summary: I purchased this machine to be a headless Plex Media Server for my house. I chose the Intel NUC over the MacMini. I purchased this 4 weeks ago for $329.99 for the cordless model. I already had a 32GB MSATA Samsung HDD I purchased 8GB of RAM for $70 http://www.amazon.com/Crucial-PC3-12800-204-Pin-Notebook-CT2KIT51264BF160B/dp/B005LDLVAO/ref=pd_cp_pc_0 The installation of the RAM and HDD was simple. Drivers are easy to find and it was a breeze to setup.
Summary: I loaded Win 7 x64-SP1 and all the drivers from Intel's website. Make sure you update the Bios also. Works great and is smaller than I thought it would be...about 3 iphones stacked on top of each other. However, it took me a while to get the OS loaded because the SATA power connector on this board did not have enough power to run my sata dvd drive (wouldn't open the drive door) and I tried 2 different drives.
Summary: This little computer has exceeded my expectations and is quite as can be, I have it mounted behind one of the 2 monitors I have hooked to it and haven't heard the fan on the processor yet. I hooked a Plugable 7 Port USB 3.0 Hub with 4A Power Adapter hub up to it so I had available USB out in front.
Summary: Very surprised by the NUC. I use it for daily surfing and streaming. 8GB Corsair, 120GB mSATA. No wireless card as it will always be connected to the router. Time of hardware install and OS(Win 8.1) took all less than 15 minutes. Paired it with the Logitech K400r with no issues. Was able to change BIOS settings right off the bat. Love that i can hang it behind my TV. This is really simple and i hope the way of the future.
Summary: I love this thing ! It's blazing fast, ultra compact and decoding video is suberb. Only reasons I didnt give it 5 stars is that Intel needs to add a power-on via keyboard option (you can only wake it from sleep, not power on via keyboard) and that it's still actively cooled (I always prefer passive cooling, although I must say the noise the cooler makes is very faint).
Summary: I bought this system with the Crucial 16GB kit (CT2C8G3S160BM) and a Crucial M500 240GB mSATA Internal Solid State Drive (CT240M500SSD3) and it is awesome. I installed Fedora 20 on it and everything booted first time, flawlessly. In the 15 years I've been working with Linux, that's a first. With the SSD, this computer boots in 10 seconds (including the 5 second delay for you to select which Linux kernel to boot).