If you've ever been an attendee or hosted attendees, then you understand you can never fully satisfy everyone. There's always something that could've been better, but you can do your best to avoid these common complaints.
Put yourself in your attendees' shoes for a second and think back to the events you've attended. Have you ever showed up and looked at the food, cringed, and walked away? Or listened to a keynote speaker that either made no sense or had little relevance to the conference? I'm betting you've had a complaint or two yourself.
If you're a planner then this blog is important! If you work to solve these potential problems before they happen then you've got a better chance of avoiding unhappy attendees.