With any collection of short stories, there are going to be those that you love and those that you think are real stinkers. "The Ghosts in Baker Street" is no exception.
Among the standouts are "Death in the East End" by Colin Bruce and "The Coole Park Problem" by Micheal & Clare Breathnach.
As a whole the collection is just so-so. Those two stories though make the book worth the effort.
I have reviewed each of the stories separately in the Baker Street Irregulars GR discussion group (https://www.goodreads.com/group/show/43101-baker-street-irregulars) in the following thread: https://www.goodreads.com/topic/show/1591825
BTW, I skipped the three essays at the end of the collection on the recommendation of other reviewers.