Download and install the preview only if you

Want to try out software that’s still in development and like sharing your opinion about it.

Don’t mind lots of updates or a UI design that might change significantly over time.

Really know your way around a PC and feel comfortable troubleshooting problems, backing up data, formatting a hard drive, installing an operating system from scratch, or restoring your old one if necessary.

Know what an ISO file is and how to use it.

Aren't installing it on your everyday computer.