We were trying out the roll20 system for non-video chat users and we had hit a serious problem. It is really wonky. It is difficult to follow and a really small area for chatting. Now this system may have been designed with video chat in mind, but some of my players can't run video or audio so it hampers us in a way. Will there more improvements to the chat are such as location and size. These will really help our game.
Another problem we were dealing with is that the players have very little control except for what the GM gives them. It would make games go a little faster if they were to have a little more control in making their own notes and control tokens. Giving universal control of Tokens would not be a bad thing.