I've had this book for about a year now and have been popping in and out of it regularly, looking for an explanation of what terms mean in the literature books I study. The terms I've looked up have always been in the book. The explanations are always good enough for me to understand what the terms mean.
The book is well organised and I've been impressed with the willingness of the writer(s?) to refer to examples and then print them. Such as under 'sibilance' which I recently had to look up; the book describes what the term means "The marked reference of the 'hissing' sounds known as sibilants", then gives examples such as "(usually spelt s, sh, zh, c)" then says where it's usually used "The effect, also known as sigmatism after the Greek letter sigma, is often exploited in poetry, as in Longfellow's lines" and then a proper example: "Ships that pass in the night, and speak each other in passing;\ Only a signal shown and a distant voice in the darkness".
It's arranged alphabetically and there's a pronunciation guide at the front (which I've never used as I'm only reading or writing these terms).
Looking through the terms, it's pretty broad what they've included. For example I wouldn't have expected to find synaesthesia in there, as it's not a literary term, but it says it's found in poetry including Keats.
So yes, I do recommend this book to all students and scholars of literature, particularly those who are expected to understand and use poetic terms.