They will be. I usually go to the Sabers game at the Comcast center when they play here, but not tonight. I typically like to sit higher, but that's just because I usually have to buy my ticket. You'll be amazed at how fast they really move, and you'll be able to follow the puck alot better than on TV.
The venue is a good place to watch a game, too. Good beer selection (last time I was there, they had two places that had Labatt's on tap) and awesome food selection.
Also, the difference between an Eagles game and a Flyers game is night and day. Philly isn't a hockey city, so you probably won't get booed or called an !@#$ too bad, but if you do, it's just a knee jerk reaction from a typical Philly fan.
Have fun!