Why did Sheraton Yinchuan treat me like this!

Why did Sheraton Yinchuan treat me like this! On my first day in Yinchuan, I chose Sheraton. I booked a basic room without breakfast because I thought it was cost-effective. I didn't expect them to upgrade me to an executive suite for free and give me breakfast! I didn't dare to ask, and silently checked into an executive suite for the first time in my life. It was so big, I have to say, the bathroom was bigger than the entire room I stayed in in the desert. There were two bathrooms and two sinks, which made me indecisive! (Forgive me for being inexperienced, but I was really shocked all night) The service was great. They called to confirm my check-in time before I went to the front desk and asked if I needed a pick-up service. They also called to ask about my check-in experience after I got home. I was very satisfied!