Only used it once, and they did lose my bag, but it wasn't their (DME) fault. I only had one DME tag (long story) and was told to just make sure I tell the guy at the airport when I check in that I needed another DME tag (this was five years ago, so my memory is a little fuzzy!). I did and he nodded at me and said he would take care of it, grabbed my luggage and threw it on the conveyer belt behind him. I was concerned but thought, "oh well, he must know what he is doing!" LOL Of course it didn't get tagged so DME didn't pick it up with my other luggage and it was put in the unclaimed room at the airport. I contributed to this as well because I had borrowed my mother's luggage, so her name and info were on the luggage tag, so they didn't match the two bags together. However, DME (even though NONE of this was their fault) went SUPER FAR out of their way to ensure that once the airport had found my luggage it made it on the next bus and I had it within 24 hours. I was REALLY impressed with the service and my dad, who is not easily impressed, was also blown away. Like I said, the details are fuzzy, but it seems like they put someone on it really early in the morning, like 5am, to make sure I had my luggage by that day. They were really great.