The RRFS is on weatherbell for sure. It does OK from what I can see.
My bigger question is how it does in the cold season - cold air damming, mesoscale banding, etc.
Because the METARs only report a 6 hour max every 6 hours and the 1-min obs are rounded to the nearest degree C so unless they actually dial in manually we don't know for sure.
If they provided 1-minute data that wasn't rounded we'd know sooner.