I also had some issues with Sheldon... It felt like too much for him to really be that clueless. Maybe I'll change my mind with rewatches, but I wasn't especially amused with most of his stuff.
The Leonard/Penny storyline, on the other hand, I LOVED. I like how they're able to talk when issues come up now. And they can throw some barbs at each other, but ultimately know it doesn't really matter. And Leonard was just way too cute playing the cello and singing.
