Yes, the Titan Books "Further Adventures" series has been really great. They've reprinted a lot of the more notable Holmes pastiches from the past, like Philip Jose Farmer's The Adventure of the Peerless Peer, Loren D. Estleman's Sherlock Holmes vs. Dracula: The Adventure of the Sanguinary Count and Dr. Jekyll and Mr. Holmes, Daniel Shastower's The Ectoplasmic Man, and Edward Hanna's The Whitechapel Horrors, along with some brand new ones, so I'm looking forward to Robert's book.
I was really surprised when Titan published Peerless Peer, because the Edgar Rice Burroughs estate was opposed to the book when it was originally released. I was glad that they published two that I'd been looking for for years, Manly Wade Wellman's Sherlock Holmes' War of the Worlds (though it was badly proofread and had serious layout problems) and H. Paul Jeffers' The Adventure of the Stalwart Companions (Holmes and Teddy Roosevelt work a case together in New York City).
I would love for Titan to reprint the Ellery Queen edited The Misadventures of Sherlock Holmes, since it hasn't been in print for over 70 years.