We've used luggage valet twice in the past with no problems and it worked great...and then I used it last December on the Rock Legends cruise.
Here is something many people don't know or report about. Customs requires RCI to randomly select a certain number of luggage valet participants for a baggage search. If they didn't then people smuggling things would use the program to evade the other random checks Customs does for the 'regular' departing guests.
I don't have a problem with Customs doing this. What I do have a problem with is the way RCI implements it. As I was leaving the Liberty and put my card in the security reader it alarmed and a flashing light went off. I didn't know what was going on. The RCI security guy grabbed my card and put the rope up to close the lane. He then called another security officer who came over, confiscated my passport and ordered me to follow him. He took me to the medical facility waiting room, mumbled something about Customs wanting to talk to me, and left. With my passport in his possession. I was left there alone for several minutes wondering if someone had stashed something in my luggage, whether I was going to jail, etc. I was about to have an anxiety attack until three more passengers were rushed in. One them in tears because she didn't know what was going on either. About 5 minutes passed before someone from Guest Relations arrived and told us we were randomly picked. He then escorted us off the ship to the Customs inspectors and we were on our happy way. Meanwhile we had to endure the catcalls and taunts from other passengers about our 'being busted' and 'next time smoke all of your pot before the cruise ends'. I was very angry about this and wrote RCI a letter. The response was as expected, that they'd look at the process. It didn't turn me off to RCI. All I asked was that they handle it differently. Why have me set off alarms at the ship exit when all they needed to do was contact me before debarkation and inform me. The luggage was already out of my control, so it isn't as though I could do anything about illegal items at that point
Bottom line - I am done with Luggage Valet.