Interactions with Media Architecture such as lighting systems or façades can provoke rich experiences by both active users and spectators (see Figure 1). However, prototyping, studying and finding an appropriate method to investigate these systems is challenging. Till today there is little guidance literature on how to design such systems from scratch and the large amount of evaluation methods does not provide any cues which method to select. We present our system StarLight, our investigations during the event of a live music festival and reveal insights from a filed study in the wild. Our work includes a report on preliminary insights on how users perceived the interaction with an interactive lighting system in front of a large, public audience. To evaluate our system we have explored the usage of different UX methods in parallel and provide the lessons we have learned evaluating our system.