Personally, I would have liked Love is Murder as a lead-in to LMTD instead of between the two books. The last we saw of Lucy she was kidnapped, raped, and almost killed live on the Internet. I would really have liked to have read Love is Murder before the grown up Lucy books to see how she was doing now and what was ahead for her.
That said, I love Brennan’s work and writing and Love Is Murder is an excellent short story. Very detailed, compelling, and I loved the characters. Added bonus of excerpt of Kiss Me, Kill Me and an FBI interview with Lucy!