The MacBook Pro keyboard has been a source of controversy and criticism for some users. The issue stems from the design of the keyboard, specifically the butterfly mechanism used in the keys. Many users have reported problems with the keys sticking, double-typing, or not registering presses at all. These issues can be caused by dust or debris getting under the keys, and they can make typing difficult or frustrating. Apple has acknowledged these problems and has taken steps to address them, including a redesign of the keyboard in some models and a program to repair or replace affected keyboards for free. However, some users have reported continued issues with the keyboard even after repairs or replacements. If you are considering purchasing a MacBook Pro and the keyboard is a concern for you, it may be a good idea to try out the keyboard in person before making a purchase, or to research the experiences of other users to get a better idea of the potential issues.