Apple CEO Tim Cook says that the company has a “lot more to do,” but is excited by how the first Apple Silicon M1 Macs have been received.

Speaking during the legally-mandated quarterly earnings call, Cook responded to analyst questions about M1 Macs, the first of Apple’s computers to be powered by in-house designed silicon. Stressing repeatedly that he sees this as early days in the transition from Intel to Apple Silicon, he said that Apple is excited about progress so far.