Based on my personal experience, I would say that 15 GB of hotspot is a lot for Netflix. However, this amount can vary depending on the Netflix account and the device used. For example, if you have an iPhone with a large storage capacity, then 15 GB of hotspot might not be as much of a problem. On the other hand, if you have an Android phone with a limited storage capacity, then 15 GB of hotspot might be too much data for your account.