I've received about 3 or 4 things from Kickstarter, including an awesome pen.
I'm still waiting on about a dozen, 3 of which have already missed the original estimated ship date but that date was likely estimated for about 100 units, not 1,000+. I'm not concerned. But those are products already built that need to be manufactured. I have much greater concerns for video games.
I'm wagering my Kickstarter success rate will be approximately 90%, though if you count quality more like 60% (I do expect a good chunk of these games to take an hour of my time before I uninstall.)
A friend of a friend of a friend of a friend in Brooklyn kickstarted his artisinal sauerkraut project. He used most of the funds to build a new kitchen for the sauerkraut. Then posted a panicky "hey, does anyone know where to buy organic cabbage? Everyone is telling me it's past season" update. Guess he got his kitchen but his customers didn't get their sauerkraut.