And finally, you'll probably want to skip the Android P Beta if you're traveling, at work, or about to go on a trip. That's because things could go wrong, stuff isn't working right and it isn't worth the headache.
Over the years we've spoken to a lot of people stranded with a busted device/app/service because they updated to a new version of Android during a business trip or vacation. This is especially true on an early version of your main software. Just think things through. That's especially true for the new devices taking part of the beta program.
Having a functioning Google Pixel or Pixel 2 is important when you're traveling in a place you've never visited. It's also important while away on business. It's fun to try the latest release, but again, do it on a spare device when you have the time to jump in head-first. Instead of rushing to install it right away.
If you're out of your comfort zone, it's a good idea to wait on the beta. Wait until you get back home and can give it full attention. Then, if anything goes wrong you can unenroll in the beta and go back to Oreo.
These are all pretty basic. At the end of the day just make sure you know what you're doing, what you're getting into, and if it's right for you and the situation. Enjoy the second beta, flash this new 4th release, or wait for the 3rd and final "beta program OTA" in July. Then, we'll get one more 5th version before the global release date. These last two are the most stable and are your best bet.