With something like that the utility borders more on novelty that any real use. The problem is that fewer and fewer AM radio stations are even broadcasting at all, and of those, even fewer still have a real live staff that during an actual all hell has broken loose type of event are on site or can get on site to begin broadcasting. Most are many states removed working over the internet remotely, so if/when that goes down you get diddly.
For something along those lines for AM/FM and/or WX radio reception and still have a little bit of hope of something meaningful being broadcast, I'd get a dynamo radio that can be recharged via hand crank, or in some cases solar along with all the other usual suspects for power. That way you're covered on more bands and still not wholly reliant on grid power.