Is general admission standing? Are there seats available too?

Yes there are seats.

Mostly it is standing but there are some rows of seats available. If the balcony is open they do have seats up there. The show I went to last Friday, the balcony was closed.

I recently was there, and the whole venue is general admission. If you want to sit and watch the show, go to the balcony as you won't have the people standing in front of you.

Yes there are seats but GA covers everywhere. You only pay the extra for meet and greets, VIP, etc

There are seats available at this venue but the date I went was general admission, no seating assignment. Plus, standing areas were available. I hope this helps!