I still think the generic ballot is overrated
ex. ME, while the state most likely would rather see a Democrat in the senate, they will send Olympia Snowe there with about 70%.
And states like NY which only elect one senator pump this total up, as a state like WY which only elects one senator has a low effect.
The generic ballot is never the greatest indicator.
The generic ballot is not good for the Senate, but historically has been a good indicator for the House. While I would love to see the Dems win back the Senate, I just don't think it's too probable.