Yes, it was very good reading for me back in the 70’s. I didn’t swallow all his suppositions, but you are right that many were later proven true.
For me it is kind of like Atlas Shrugged, everybody should read it.
I do not think Velikovsky made suppositions, what he did in his monumental works is present the reader with evidence from myths, legends and ancient records in Worlds in Collision, and the archaeological, geological and fossil records in Earth In Upheaval.
In other words, he showed the history of the earth in a multi-disciplinary fashion - and the reader is thereby enabled to make up their own minds from that evidence. Thus, those who are terrified of the possibility that there have been major destructive catastrophes in recent millennia can malign his investigation and research and thereby play ostrich. Just as Carl Sagan did.
Remember, as he walked away after being forced to recant, Galileo is reputed to have said, YET IT MOVES.
Just so, VENUS REMAINS HOT, and NOT because of any run-a-way greenhouse effect. The planet remains almost MOLTEN, and we have Sagan to thank for the Global Warming myth.
Sagan, the nemesis of Velikovsky had previously touted Venus as the planet most like earth, lush and verdant.