Very interesting concept. The concept of teleportation via machine, introduce in Star Trek, is fascinating, and if you're even slightly philosophical leads to many discussions regarding ethics. Is it a method of transportation, or a weapon of mass destruction? If it DOES kill you, does it really matter, considering your copy has all the original memories?
"The transporter malfunctioned" is a fairly common trope, and this book explores it well, with maybe a new idea or two to throw into the ring.