It's a disappointment.
The first two seasons are great, but everything goes downhill from there.
Marinette is a stalker and abuses her powers to do illegal things while verbally and physically harming her so-called 'partner' as Ladybug.
Adrien wasn't present for the ending of his own arc.
Hawkmoth was a villain for five seasons, and somehow, wasn't able to win.
It's unrealistic for the conflict to drag out this long, and for adrienette to drag out even longer.
The ending is unsatisfying, most loose ends never get closure, and characters with great potential are thrown away (ahem, Luka) or replaced (ahem, Chloe)
Makes me want to switch on Cartoon Network, even Teen Titans Go has better character development and consistency.