"Persona" had a lot going for it. The "death" of Bizarro. The death of Grant at the hands of Lex. And most importantly, the signs of a huge rift between Clark and Lana. Unfortunately, the consequences getting there were underwhelming and.. just so average. For all of the things that happened in this episode you'd surely expected more bang for your buck, or even a littler tighter story but it just wasn't there.
That being said, Grant's death was a sad moment, sure he'd only been around for the first half of this season but he was a likable character and one that certainly didn't deserve the fate that became him. Although, it is nice to see Lex slip further into the darkness that we all know becomes his life.
Clark and Lana's rift is one that seems far too great for them to repair. Even if saying she was more in love during the month with Bizarro than she ever has been with Clark, just to trick bizarro, the message was clear that it wasn't all untrue.
Too bad all of the roads taken to these plot developments wasn't just a little better, because these were all outstanding moments.