What Roy's can tell you when staffed
When the Roy's store and café operation is open and staffed, the counter staff can typically answer a range of practical visitor questions: the property's history (Roy Crowl's 1938 founding, Buster Burris's postwar expansion, the 1959 Googie sign installation, the 1973 I-40 bypass, Albert Okura's 2005 preservation purchase), current operational status (gas station, café offerings, motel restoration progress), and the broader Amboy context (the salt mining operation at Bristol Dry Lake, the population history, the Mojave Trails National Monument designation in 2016).
Practical visitor information available from the staff typically includes recommended timing for sunrise and sunset photography of the Googie sign, current status of the Amboy Crater trailhead and the standard hiking route, road conditions on Old Route 66 in both directions, recommendations for restaurants and lodging in Needles, Ludlow, and Barstow, and informal suggestions for other Route 66 stops worth combining with an Amboy visit. The staff have generally hosted thousands of visitors and have well-developed answers to the common practical questions that come up.
The staff also typically have current information on the broader preservation project — what work has been recently completed, what is currently in progress, and what is planned for the near future. For travelers who care about the preservation story (which is a significant subset of Roy's visitors), these informal updates can be the most interesting part of the conversation. The staff are generally willing to talk about the project in substantive detail when time permits and the operation is not otherwise busy.