Except for the bit that immediately killed it for us in the office: only one external display. Even if you close the lid.
I dream of the day I can kick windows into the next bin, but this is the one thing that the Neo fails hard on, all other compromises would've made this a great remote dev machine.
Any shitty dell can support two external displays with a docking station. And I truly mean it when I say that for a second the Neo got me excited to drop Dell.