My wife is not a big concert goer, but I think I've got her convinced to come to Western Springs for the Foo Fighters concert in December. Or at least I thought I did, until I found out that all tickets are GA only. Once she found that out, she wasn't anywhere near as keen. 

I've never been to a concert at Western Springs before, and am hoping other Geekzoners could share their experiences. How crowded does it get standing on the field? Is there respite from the crush of the crowd if you stick to the side or back? And are there opportunities to sit down during the quieter moments (read support bands ;-))? Is the situation better if you opt for tickets on the embankment? I assume you'd be further away from the stage, but is it so far away that it really ruins the concert, or is it still an enjoyable place to view things from?

Also, what is access to the amenities like? Is it a bit of a fight to work your way through the crowds if you need to, and do you then find yourself on the fringe of the action when you want to return?

Any other feedback also welcome (e.g. best strategies for parking).