Well folks after a great week, I have decided to return the 2014 mac mini 8 gb ram with the samsung 256gb pcie back to apple. I had parallels 10 and win 8.1 and office 365 already installed. After having owned it, here are my thoughts: PROS-- ++ Quiet. To me this was key (others may not be). I had the quad core haswell intel nuc before which some people think is quiet but boy this thing is pin drop quiet. I also have a haswell laptop and I can hear that fan ramp up at times, but this thing was dead quiet. ++ Sips energy. I think this is a combo of hw + sw optimizations. ++ Fast pcie flash. ++ supports 2560 x 1600 @ 60 hz. I don't have 4k to drive. CONS-- -- There is a subtle lag. You notice the tearing while moving windows around in 2560x1600. You can see the cpu util hit high usage %age on activity monitor with parallels and guest os such as win 8.1 doing basic task like running update (no transcoding, no gaming, etc). While I agree that most productivity usage scenario is not cpu bound, there are times when you need the extra headroom. For instance zipping, unzipping, etc. Yes, these are minor annoyances and I have 4 other laptop/desktops that are many times faster than this little guy (and also make a whole lot more noise), though for a $900 box, I expect better from a 2014 box. If this was 2004, fine, but not 2014 and certainly not when I am paying a premium compared to what I can get from any other box. Other tangential things unrelated to hw, is the inability of the yosemite mail app to sync my office 365 exchange server completely. It gets the last 10 years of mail then stops. There is no option for cached exchange where you can specify how much to keep in local cache. I had reached a point, where I didn't even fire up parallels or try to login to the web version of office 365, I would just remote desktop (using the ms rdp app which is great btw on the mac) to my htpc (which is many times more powerful than it needs to be) and run the windoze/office apps from there and was frankly near lag free over my gigabit network. I can still have mac running and no need to bootcamp over yet they are sufficiently separated that there is little cross contamination. I realize these sw issues have little to do with hw, but apple is selling the complete experience, and this is not complete. If you completely live in the confines of the apple ecosystem, all is nearly well, though and this little box will serve you well, if you don't mind the subtle lag.