The first half is promising. Unfortunately the promise is never fulfilled.
We get a mystery of a dubious quality, almost no resolution to that either, and in the last 10 pages the author suddenly remembers that he had set up a fertile ground for psychoanalysis in the beginning and tries to wrap it up as quickly as possible.
The writing style, however, is nicely similar to Conan Doyle's, and the links to other stories from the canon are maintained. I liked especially that 3-4 original Conan Doyle's stories were roundly denounced by Watson as miserable forgeries.