Uber driver gives CEO a one-star rating

Uber's tense relationship with drivers for its affordable UberX service is well-documented, but even drivers for the company's high-end options are growing disappointed.

In a video recording of CEO Travis Kalanick riding in an high-end Uber Black car published by Bloomberg, the driver confronts Kalanick about the company's fare cuts, which Kalanick disputes. Fawzi Kamel has been driving for Uber since 2011, according to the report, and told Kalanick: "You changed the whole business. You dropped the prices."