Anybody have any idea of how this compares with Valhalla? https://github.com/valhalla/valhalla https://github.com/valhalla/valhalla https://mapzen.com/blog/va

Anybody have any idea of how this compares with Valhalla? https://github.com/valhalla/valhalla https://github.com/valhalla/valhalla https://mapzen.com/blog/valhalla-intro/ https://mapzen.com/blog/valhalla-intro/