A few bosses do mix things up, mostly the frog in Honest Hearts and the vampire at the end of Blood and Wine, and shielded humans can be annoying (why is it that Geralt can cleave a man in two straight through plate armor in finishers but can't dent a wooden shield anyway?) but yeah, in general the combat can be very repetitive, and along with the weaksauce progression systems are the worst parts of the game. Fingers crossed that Cyberpunk does that better.