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(NECN/NBC News: Tracie Potts) - Two months since healthcare.gov opened, the Obama administration says it's working better and faster, but it's not perfect.
Experts are still working bugs out of the system while the administration urges people to give it another try.
The Obama administration said it met its deadline that 50,000 people can now use healthcare.gov at the same time, 800,000 a day, and most of the time with just one percent getting error messages.
Fmr. Health Policy Advisor to President Obama, Dr. Ezekiel Emanuel, said, “This one still has a ways to go. But it is certainly working reasonably well."
Critics say while the front door may now be open, the back door, calculating payments for insurance companies, is a mess.
Fmr. Senator Rick Santorum said, "The information coming out the back end to the insurance companies is still garbage. It's indecipherable."
James Capretta of the Ethics and Public Policy Center said, "They're working around the whole problem instead of actually solving it."
There are still concerns about whether all that personal information on the site is secure.
Republican Rep. Mike Rogers of Michigan said, “I don't care if you're for it or against it, Republican or Democrat, we should not tolerate the sheer level of incompetence securing this site."
Democrat Rep. Chris Van Hollen of Maryland said, "Yes, there are problems. There's no denying that. Let's work to fix them."
Now, just weeks from the end of the year, millions are still seeing their old plans canceled.
Neera Tanden, President of the Center for American Progress said, “There are better plans for many of these people. And I think that's what has gotten really lost."
Americans have an extra week to sign up. The new deadline to sign up is Dec. 23.