I sat on the send tier of Citizens Bank Park for the Penn State game there after the Winter Classic and was pleasantly surprised I was able to see everything just fine. Downstairs would have been a different story though.
Same type of experience here...sat upstairs at CBP for the AHL Outdoor Classic that year (Hershey vs. Adirondack) and, despite being far from the rink, I thought the view was marvelous.
Sat downstairs for this year's AHL Outdoor Classic in Hershey (Hershey vs. Wilkes-Barre), at a stadium built for football, so I expected it'd be a much better experience.
It WASN'T. The CBP experience was far more enjoyable.
Take it for what it's worth...