Absolutely the Lab Time. Being able to watch a developer talk about something live is arguably the same live or later on video, but then being able to go and si

Absolutely the Lab Time. Being able to watch a developer talk about something live is arguably the same live or later on video, but then being able to go and sit with them afterward and ask questions is invaluable. I gained more from 20 minutes with two different engineers last year than sitting through most of the sessions.