It's been a little over a month on the new battery and it is performing well. Identical to when the car was brand new. Out of the dealer, GOM was displaying around 105 @ 100% charge. After a couple of weeks of my driving, GOM dropped to 95 miles @ 100% charge and it's pretty much held at 95 since. My daily commute is 35 miles each way (almost all freeway driving) and I arrive at work with 70-75% remaining charge (depending on traffic). Again, this is very similar to when the car was brand new.
I think the battery pack is brand new, but I did not read through the dealerships paper work to verify. All of the battery was covered by the car warranty, so I didn't pay anything out of pocket. On one of the papers that I signed when picking up the car from the dealer, I saw that the total cost would have been $17k+ (I'm sure that included labor, but they didn't give me that particular sheet). Safe to say, I would abandon the car before ever paying that much out of pocket.
After a lot of phone tag with the corporate guy, we finally talked. He asked me to send him a copy of my car payments, which I did. After a little more phone tag, I spoke to him today. The goodwill offer was to give me 4 months of my car payment. I accepted the offer. Prior to the conversation I had an idea of what I felt was a fair offer and the actual offer was very much in-line with what I felt was fair. He's going to email me some paperwork for me to sign and will process the payment following that.