Honestly, our MeteoWind Pro IoT box was not water-tight. It failed on us after a couple of months. Barani promised to send me a new one for that. It never got here. Repeatedly asked.
The anemometer itself has rust on the parts where the mounting screws are. Would have thought this would be stainless steel, or rust-free, apparently it was not. That said, I was only 'testing' their equipment, but still.
The values we got even from our netatmo anemometer were about similar, I barely ever saw much in favor of the barani unit. It looks better, of course, and the netatmo requires battery-replacements every year, but that's about it. Data-parsing from the netatmo devices is way easier than with barani devices.