I've only read the first two novels so far (more like novellas really) and have enjoyed them very much (perhaps with the exception of Mary - the movie version of her was so much better. I hate the weak, faint at the mere thought of blood type of female character and I have to say, ACD certainly has romance novelists beat in the love at first sight thing *laughs* Watson meets Mary and the next night asks her to marry him!).
My one complaint is with the books themselves. Yes, books, not book. I had wanted a complete collection in ONE book and the description here, as well as some of the reviews, said this was all in ONE but it's really two books in a box. The covers are like any typical paperback, they will come apart with rough usage. The print is also fairly typical, not overly small at all (this coming from someone with bad eyesight).
I do wish amazon.ca was selling the GORGEOUS Barnes and Noble leather bound complete collection (in ONE book) as the Barnes and Nobel site is refusing to let me actually order it. I really just bought this collection to read the stories/novels for the first time with the intention of getting a very good copy (cover wise) elsewhere. Definitely worth getting these books as a first time reader for such a low price, but if you're an avid fan of Holmes and are looking for a complete collection that will last a lifetime, I'd suggest checking out one of the leather bound editions.