How good is Murat Gassiev?

He was / is very talented, but he fell in love with his power way too quickly and never learned any high level boxing technique or even focused on basic skills like properly cutting off the ring, jabbing with the opponent etc. A shame considering how good of a body puncher he was. Add to that the injuries and inactivity and you have a straight forward power puncher whose basic skills actually regressed when competing with heavier guys. Usyk was also a terrible style match up for him and always beats him, which I think affected his confidence a bit.