I dont mean Elo=opinion. its more like Skill=Opinion.
For example Crimsonxone (a guy who played taiko like 2 years but is afk right now ,playing LoL) is a good Nami,and sometimes i wonder how the hell is so good at Nami,i never lost a game with him when he is playing Nami.
Nami is for Crimsonxone like Malzahar is for me,underplayed ,high skill cap , countereable as hell but still fun to play.
I mean,every champ is fun,but it depends on the player and his skill,because most people doesnt likes a champ because they cant play well with them.
tl;dr Nami is fun
EDIT: Sorry Nofool, i didn't tried to mean you are a bad player something else,i wanting to say most of the people who thinks some champs are "boring" is because they can play them.