He has as much charisma as a slop bucket, with looks to match. I have dropped turds that I'd rather spend the evening with. Even Mrs TMR thinks he looks "shifty" and she never says a bad word about anyone (apart from me, of course).
Other World leaders will look at him as a gargoyle bean counter, a hunched, bad breathed, nail chewing clot. A schemer, a goon and - as has been said, a total cunt.