Awesome news. When we started RV traveling we wanted to do the 50G plan whenever we were out of cell-range but it turned out to be such a convenient service that 50G didn't last us more than 3 days so we switched to unlimited and haven't regretted it. Absolutely worth it because even the residential dish works flawlessly while driving and the kids can game and stream all at the same time from the pickup.

I put some more details on my blog if you're interested in power specs or DNS options on the router, etc. https://bitcreed.us/bitblog/starlink-on-the-road

You can also start on the 100G plan and when you run out of data switch to unlimited right from the app. That'll bring down the first-month bill a tad and give you a chance to gauge the "slow speed" option.