Opinion: Do you think Bleach isn't as good after Arrancars?

I know that we all complain about how first episodes were always the best (they seem good because we just get introduced into the Anime in those ones so its all nostalgia)

But the quality of the show seem to have dropped during the Espada episodes... I know that by law of Anime, in Action/Adv Anime, the power levels have to increase but it seems that it isn't as good as before... Aizen the calm, composed person just becomes a madman... he goes through 5 power changes in 5 episodes and not showing off any of the new skills in half of them...

Overall, it seems that the Author just put in a bit too much in a short and made it too much rushed... the only thing memorable was Gin, that guy we could never understand yet got touched by the most... and its just sad when the main character has to do everything, Gin deserved to have beaten Aizen, now that would be a change to the rule...

I know that I'm wining too much about a fictional story but what do you guys think?