I've watched every episode but the last, and I'll probably watch that episode sometime today.
The plot lines are just as drawn out as last season's, but without the big catch-your-breath endings, the show leaves feels slower. The whole Hiro in the Past storyline has gotten old, and so have a few other storylines.
I agree that Hiro in the past got old fast, but it may be worth it to set up Kensei as the immortal Adam who apparently founded the Company.
