Well I exhibited at INPEX last year and was really satisfied with the speakers and classes they offered. I also enjoyed seeing all the inventors and inventions. I will probably exhibit there again this year and I would recommend it if you would like to gain exposure and some feedback on your invention. They also have some prizes you can win and good contacts you can find. I would say the best part is the classes, so don't miss those. Make sure to create a cool sign and create a smooth and precise pitch so you can tell everyone what you have in a short and precise manner. NEVER discount anyone as they might be more important that you would think. Don't look at people's badges because it tacky and makes you seem desperate. Treat everyone with respect and try to keep an open mind about others inventions.
Stay away from the organizers INVENT HELP IS THE DEVIL