Buyer beware: Indiegogo campaigns for hardware leave their supporters with very little recourse if the project fails to deliver. I've been burned by this one in the past.
In my case, all the person running the campaign had to do was send out weekly messages to those who had purchased. The content could be something like "I'm trying to call my partner, but he's not answering". You may get your hardware. But if you don't, the game is slanted against you having some sort of acceptable outcome.
I'd consider it a gamble and wouldn't spend any sum of money that I'd feel bad about losing.