"In the late 1980s, Hilton was among the first luxury hotel brands to utilize the service, " says Mike Bare, co-owner and president of Bare International and one of the original founders of the MSPA. Three decades later, it's common practice among hotel brands around the world. (Proof: LRA recently opened a satellite office in busy Singapore.) And soon enough, its taciturn nature may be over.
CNN: Confessions of a hotel mystery shopper