There's no "100% sure" with Kickstarter. If you didn't trust the organization, you probably shouldn't have given them money. (And that's not directed at Muse—I'm speaking for any project you back on Kickstarter.) You take a risk when you fund something, that is the nature of funding a project. But you do it because you trust the people to deliver something awesome. I have no doubt in my mind that Muse will deliver something awesome.