Summary: I am using this as a Ubuntu home server for doing some development for a website idea I am playing around with. I did have some problems choosing a distro because some seemed to struggle with the install, but once everything has gotten up and running, it has stayed on for the past 2 months with no downtime. Would definitely recommend this for an inexpensive little linux box.
Summary: I wanted to replace my parent's (and in-law's) computer with something modern. They were using very old computers with Windows XP, and were complaining about the slow speeds. They aren't computer savvy, nor do they do a lot with their existing computers, so I thought this was the perfect solution for them. I really wanted to get the Core i5 or i7 version, but I couldn't wait any longer because I'm flying out to meet them.
Summary: Small, quiet and the I3 Processor makes it quite zippy. With a wireless keyboard this makes a great HTPC that connects to a network or external storage. Built with 4GB of Ram and a small 32GB mSATA SSD running Windows 8. Would highly recommend. The quality of the unit is what one would expect from Intel. HD video works great. Price is reasonable.
Pros: Small, fast, and quiet. Loaded it up with 8GB of DDR3 1600(1.35 volt, low power memory) an Intel 525 SSD and Windows 7 Pro x64. It's currently mounted out of sight behind a TV, serving as a conference room PC. The other three conference rooms have mATX towers hidden away in cabinets, so the NUC is a far better fit.
Cons: Does not include the power cord! It requires a power cable with the C5/C6 connectors on it, which is the "cloverleaf" style connector found on laptop power adapters. Newegg has them for $5 or less, but it would have been nice to know that before the NUC showed up at the door.
Summary: The chassis and aesthetics are perfect. The feature set is pricey for its limitation but you are buying a bit of name brand. USB2 and not USB3 was a large disappointment but I knew this going in. The options for compatible wireless NICs are small, and nothing in the 450Mb wireless -n category yet. Intel wireless as a general statement has proven to be a bit disappointing as well.