As far as I'm concerned, it's vaporware until they release it "later in 2019". And since they are focusing on S. America and Africa, and it's still not clear where the model output will be available to the public, it's all still a moot point.
I hope they figure out how to ignore all of the bad data in their "data from millions of weather stations across the globe, many owned by private weather enthusiasts who buy and maintain the equipment themselves".