http://area.autodesk.com/customer-stories/indie-advice-part2?src=gd
look at number 6.
“Most of the Early Access games that fail are the ones that don’t provide updates on broken things or answers to questions. People will say ‘hey it’s been months since we received a last update, what’s going on with my money?’ And the person just doesn’t respond. So I would say, as long as you respond and give proper context and a proper response to people’s concerns and questions, you should be fine as long as your game is good.”