You’re restricted to relatively narrow bandwidth, and to no crypto. It’s great for experimenting with the radio tech, but not for designing the next WiFi. (But you can use unlicensed spectrum for that)

Why would it prevent you from designing a new wifi? The encryption is a software layer on top of the physical signal. You can design it skipping the encryption step.

Thanks for that clarification.

Don't forget about the baud rate limit too. Who likes that?