Grouchy John's truly has amazing customer service and the coffee is great too! I am a student at UNLV and almost every morning I stop by their truck to get a pick me up. What I appreciate about Grouchy John's is the quality and taste of their coffee compared to the larger chain coffee shops on campus. The staff takes the time to explain the numerous beverages they offer. In addition, there is a stamp card system which rewards you with free drinks. I recommend their Americano for only $2. I will definitely be returning to their truck next semester, and look forward to visiting their stationary location.