Now, to be clear, this does not replace healthcare.gov. You can't buy through the site. You can't prove your income levels through the site. But to the extent people are tripped up are finding out what's available, what the subsidies are etc. it's extremely fast.
Again, to be clear, I cannot personally vouch for the data. But a quick perusal suggests they're accessing the publicly information available and it seems very solid. If you're having a hard time accessing healthcare.gov I would check it out.
More broadly, I'm hearing of a number of sites coming on line that will actually access the exchange data and allow people to apply for subsidies and purchase through those portals. These sites already seem to be doing that.
[Special Thanks to TPM Reader BL for pointing out these sites that appear to allow you to directly purchase exchange policies.]