Seems like a nice feature for new personal weather station owners. This integration essentially bypasses WU’s weeklong QC process and steps required to first get your data to WU to begin with.
I still get many people reaching out, asking their data to be added to pwsweather, simply because their WU station was just created and not yet visible on Rachio / 3rd party map.
For those who already use tempest via WU, direct integration is unlikely to yield more than what you already have, at least at this time.