This is a more-deadly-than-average coronavirus, or so it seems.
It is really hard to tell, because it is still very new outside of China, and you can't trust any of the data coming from there -- so we won't really know for 2 more weeks, until the first big round of cases from open countries end in either recovery or death. That said, the Chinese statistics put median time between first symptoms and death (amongst fatal cases) at only 8 days -- and the 600 cases from the cruise ship are all older than that now, with 3 deaths as of yesterday, which suggests that the 2% mortality rate being bandied about is probably not wildly wrong. (It might be 1% or 3%, but probably not 10%+ like fearmongers are saying or 34% like MERS was -- unless fatalities from the cruise ship are being suppressed or there is something special about that group, or, I guess, if the median of 8 days turns out to be wildly, wildly wrong)
Concern seems highly warranted. Vigilance seems warranted. The "ZOMG we all gonna die!" going on does not.
But it sure does get ratings and score political points.
Edit: I have been using https://www.worldometers.info/coronavirus/ to view graphs and tables of the coronavirus data chopped a bunch of different ways. They list sources for all of it, though I haven't vetted the sources.
One of their charts shows a breakdown of closed cases into % cured and % dead. That is currently at 92%/8%, with the recovery rate continually improving, but flattening out. That graph makes it look like the mortality rate may end up higher than 2% -- but still probably not radically so, and we really are extrapolating from very little data.