Back in germany since Friday morning last week and still wresting with the jetlag.
Flight back was OK, I'm sorry to say that LH is much better when it comes to in-set entertainment as UA. Had a whole row for myself, "So I'll just wait... all back-of-the-bus for now."
I would have used my eGo the whole flight, but when I had to change the blinking battery I noticed that my charger with screwed-on battery was still plugged into server's USB port in our office

Desperately waiting for the USPS Package to deliver.
To sum the fantastic trip up: Vaping while flight isn't a real problem, vape is hard to notice if you try to exhale real slow due to the dry air. Smoke sensors in the lavatory seem to ignore the vape. SO if you don't stress it out, no one will notice
Ice