It's now my permenant laptop
An Acer C720 was my Christmas "experiment" - to see if I could live with this rather than my "full-fat" Windows 7 Toshiba. The answer is YES, including giving conference "powerpoint" presentations in off-line mode.
I only needed to buy an HDMI to VGA converter dongle for a couple of quid on e-bay.
Apart from that, the ability to just plug in my Android phone and get (configuration free) network connection means working on the road is now simple and instantaneous.
Add to that instant-on when I lift the lid, and a 7 second boot from cold, and a battery lifetime of 9 hours that means I really can do a whole day in London in meetings without needing to carry a charger brick with me.
Configuration free with no updates to manage.....
Close the lid, it sleeps, lift the lid it is ready to go; No more worrying of "will it resume"
The only thing missing is the ability to mount Windows file shares, but it looks like this will be here very soon.