Apple co-founder Steve Wozniak has laid into Tesla and its CEO Elon Musk.

As Business Insider reports, Wozniak used the Nordic Business Forum to explain how he went from a Tesla fan to one of their critics. Wozniak reportedly owns two Model S sedans but it appears he became disenchanted with the brand over the past few years.

As he explained, Elon Musk said new sensors would enable Tesla vehicles to drive themselves across the country by the end of 2016. The company then pushed the cross-country trip to 2017 and then 2018. The demonstration still hasn’t happened and Musk recently suggested it won’t occur anytime soon.

As a result of the constant backpedaling, Wozniak said “I don’t believe anything Elon Musk or Tesla says, but I still love the car.”

Even though Tesla vehicles come with semi-autonomous driving technology, Wozniak isn’t impressed as he stated “You’ve got to be on your toes all the time with it” and noted humans can easily do what the vehicle can’t. He went on to say that everything he’s read indicates “every other car manufacturer in the world” has more advanced autonomous driving systems than Tesla. That’s a bit of a stretch but Audi introduced the first vehicle with Level 3 semi-autonomous technology and GM’s Cruise Automation has already launched an autonomous ride-hailing service using modified Chevrolet Bolts.

Speaking of the Bolt, Wozniak revealed he’s a huge fan of the electric vehicle and drives it every day. However, he uses a Tesla on longer trips so he can take advantage of the company’s extensive supercharger network.