As to the US federal government, it's been abysmal, and trying to be objective, it's because we haven't had a single concise message from the fed. It's been Trump and his associates on one side, and the various national-level docs and experts on the other. Rarely together.
It's important to understand that much in the US happens (and is meant to happen) at the state level; during times like these, it's generally the role of the federal government to come out, give rah-rah speeches, reassure the public, and send buckets of money to the states for the real work. My point in mentioning that is, in a way, the Trump administration didn't have to do much other than show up, tell us to follow the medical experts, and to soothe us with slogans like "We're in this together!" - and they failed miserably, monumentally at that, IMO.
So on to my critique of my state's communication (Ohio):
Overall, decent. They immediately threw up a Coronavirus website, which contains the usual stuff - a dashboard to track infections, hospitalizations, recoveries, and deaths (state-wide and by county), historical tracking numbers (though hard to find), transcripts of the governor's daily updates, links to job openings within Ohio, since so many are out-of-work, and other pandemic-related resources, checklists, symptom-checkers, etc.
Additionally, the governor and his staff have a daily status update that lasts about an hour. It's brutal to watch, because Mike Dewine, whether you like him or not, is about as exciting as a sloth's nap.
Note - I'm critiquing the communication aspect only, not the actual official response.