How can I use pocket WiFi?

I'm curious about how one can effectively utilize pocket WiFi. Could you elaborate on the process of connecting to the internet using this device? Is it as simple as turning it on and connecting your device to its network? Are there any special settings or configurations required? Additionally, are there any limitations or restrictions I should be aware of when using pocket WiFi, such as data caps or geographical restrictions? Finally, are there any best practices or tips you could recommend for getting the most out of my pocket WiFi experience?