Cheap planes often have a number of issues with them such as the sole not being flat, sides not square to the sole, bed not flat causing blade chatter, adjustment mechanism not working smoothly enough to allow fine adjustment, and chip breaker not fitting properly to blade. All those issues are taken care of with Veritas and Lie Neilsen. Cliftons I'm not familiar with.
Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.