It is laughably dated in a few details.
Protagonist knows in advance of the impending holocaust and prepares a cache of "iron rations" - incl. a pound of coffee, a couple of cartons of smokes, etc.! Laughable! He later forgets about it until long after the bombs drop, and is then "pleasantly surprised" upon rediscovering it.
He should have purchased three hundred pounds of coffee (i.e., not just for his own consumption, but primarily for use in bartering, as well).
Also, an important storyline is that people are contracting radiation sickness from wearing jewelry (necklaces, diamond rings, etc.) salvaged / scavenged from the bombed-out cities. In actual fact, to be so heavily irradiated, such jewelry would have had to have been exposed to the direct blast, and would hence have been reduced to charred slag. (Placing pieces of jewelry directly into a controlled neutron reactor for a couple of hours would sufficiently contaminate them without damaging them, however - though after a few weeks, they'd be back to normal.) In other words, Mr. Frank grossly overestimates the effects of radiation (and also overestimates the wisdom of burying a small shoebox of "goodies.")
Regards,
Yeah, the well-named Porky Logan is found dead in a jewelry store, half buried in diamonds which he intended to loot but perished within seconds of exposure to the hot `ice’.
Although the novel ends with victory for the U.S., people’s lives are disrupted for years to come.
My favorite line was the protaganist’s girlfriend disgusted by his cannibal sandwiches, a food fad in the late 1950’s.
But the nuclear war starts over U.S./Soviet rivalry in strife-torn Syria. Maybe not so dated....?