I've been to several purpose-built US soccer stadi...

I've been to several purpose-built US soccer stadiums and StubHub is really great. There is more space around the outside of the stadium proper (within the venue) than at either Avaya in San Jose or Toyota Park in Chicago. It also provides a more intimate venue than Redbull Stadium in New Jersey.

The only downside is parking. It's cheap, but can take a while to untangle after the game. Prepare to wait a bit.