Serve - Postmate's autonomous delivery vehicle

My thoughts about this robot 1) looks too small to have sufficient range of movement for practical commertial using 2) most likely has a small vandal resistance and has no means of scaring, protection of cargo 3) based on the estimated size can hardly carry on board a developed autonomous intelligence, and therefore will depend heavily on the cloud 4) the selected chassis will not be able to overcome the stairs, and at least how many significant thresholds, and will be limited only applicable in urban areas without snow, sand and dirt. 5) it's not like he has a system of 360 degree overview of what's required to succeed in an urban environment with high traffic of people and vehicles