I got a pair of odriod's based on price/performance to act as NTP servers and have since removed them from service.
They both had the same MAC address on the NIC, which was not impressive and more importantly have about a .5% (consistent) outbound Ethernet error rate. Not ideal for a service utilizing UDP.
I also got an odroid XU4. As a replacement for a sheeva plug I was using as a home server. I was hoping to use the HDMI out into my TV and use it for browsing and streaming media. Unfortunately none of the distros produced by hardkernel fully work. There is always something broken in each distro. It's a complete pain. I don't know why they cant just produce a distro that has all of the hardware working at install time.
My Odroid X2 and another X3 don't have a proper MAC, it's stored in /etc/smsc95xx_mac_addr.
Now that I look, there are some receive errors reported by ifconfig on the X2, but I've never investigated them. The X3 is on a different network, and reports zero errors. (I don't know how much data either has transmitted, the counter will have wrapped as it is only 32 bit.)
But, I wouldn't recommend them to anyone not thoroughly familiar with Linux. Compared to the Raspberry Pi, there's not much documentation, and the kernel is pretty old.
They both had the same MAC address on the NIC, which was not impressive and more importantly have about a .5% (consistent) outbound Ethernet error rate. Not ideal for a service utilizing UDP.
I now use Pi's, which work flawlessly.