It does look really exciting -- but I agree, it's too early to say they've been successful. FC and AngelList both seem worth consideration.
It's insane that everything else about startups has progressed so much over the past 20 years, but funding (especially the range past early seed incubator/friends and family/etc. and before Series A) is still so rube goldberg. (Series A and later is also broken, but the main limiting factor there is board seats for partners at VC funds, so it's a different problem; great telepresence might be what fixes that, like the iPad based telepresence robot.)
It's insane that everything else about startups has progressed so much over the past 20 years, but funding (especially the range past early seed incubator/friends and family/etc. and before Series A) is still so rube goldberg. (Series A and later is also broken, but the main limiting factor there is board seats for partners at VC funds, so it's a different problem; great telepresence might be what fixes that, like the iPad based telepresence robot.)