We have three of the 2013 new mac pros at work. Bought them all at same time about two and a half years ago and they have been used as daily drivers for coding and development work. Generally were nice machines to work with. Unfortunately two have already failed (randomly shutting down every five to ten minutes) and the third has been behaving erratically (random shutdowns, usb ports going bad, network failing, etc.). This is with up to date Mac software and testing all of the obvious stuff (memory sticks, ssd, system logs, etc). They are out of warranty so not much to be done about it. Just a bit disapointed, thought they would last longer than this. We have some ugly Dells that we also use and you cannot kill those things.