I repeat the review of another P.G. Wodehouse novel. Because it's the same.
Yes, we have the similar set of characters in this book (Uncle Fred is exactly like Galahad Threepwood), and the usual story of multiple engagements, break-ups, miscommunications, benevolent uncles, gambling nephews, impostors, haughty aunts, pig-napping, etc. And I love all of it.
Author Lynne Truss once said "Wodehouse always lifts your spirits,no matter how high they happen to be already.”" I completely agree with her.
Here is Wodehouse's epic reply when someone criticized him for repeating the characters and the stories.
“A certain critic -- for such men, I regret to say, do exist -- made the nasty remark about my last novel that it contained 'all the old Wodehouse characters under different names.' He has probably by now been eaten by bears, like the children who made mock of the prophet Elisha: but if he still survives he will not be able to make a similar charge. With my superior intelligence, I have out-generalled the man this time by putting in all the old Wodehouse characters under the same names. Pretty silly it will make him feel, I rather fancy.”