I became a Chalker fan during the golden age of science fiction--when I was 13 or 14--and his books remain a source of comfort reading. Well, what with the onset of coronavirus quarantine, hey, I went for the comfort, and once again I'm left thinking wildly divergent thoughts about this book I first read over 35 years ago.
The basic plot is Chalker's standby: people getting transformed into other things and dealing with the consequences. We see it on the Well World, in the Warden Diamond, in Flux and Anchor, etc., but here it's a narrower kind of transformation: people getting turned into other people through mind-swapping. We also get a few other standard Chalker tropes, including Love Doesn't Care What You Look Like, Religious Absolutism Is Bad, Fanatical Aliens Are Invading, and Hot Women Make The Best Spies. Still, the plot zips along, the twists are engaging, and the what-if concepts at the heart of the story are thought-provoking. You can (and almost certainly will) be nonplussed by a lot of the sexual politics here, but you can still be intrigued by the questions Victor Gonser's various transformations raise.
(One thing I did notice on this re-read, though: this text badly needed an editor. Mostly that need is shown by sloppy little errors. For example, one character is introduced as "Eizenstadt" for a couple of pages, and then suddenly he's "Eisenstadt" for the rest of the book.)
All in all, then, this was exactly what I'd been looking for: a prose style that's unchallenging if not elegant, a series of well-constructed if familiar plot twists, and a chance to mull over thoughts about identity, sexuality, memory, and surveillance. That it's also a book about a dweebish male professor who gets turned into a hot blonde hooker is undeniable, but if you can tolerate that, you can expect entertainment.