Okay, so I've spent 30-40 minutes playing around with the tools, and it looks great. Still there's a few things that caught my attention.
I tried setting up a map and placed a few tokens on it. When turning on turns, the map was then given a turn along with the tokens I think. I'm not sure I figured out the turn system correctly.
Most of the music is louder than other players voices by far. And it's not possible to see if the music found is actual mood setting music, or a techno remix of something.
Roll20 could use an easier way to invite people than sending a link.
It would be cool to assign tokens to a character so that they could be dragged and dropped from the character sheet when needed. It would also be cool to enable additional tokens for such character sheet, in case of disguises, shapeshifters, etc.
I'll post more thoughts as I play around with Roll20. :) Really enjoying it so far!