First I met with their HR dept who were extremely friendly. They just asked all the basic question getting to know you. As long as you aren't to socially awkward this part is a breeze.
Then we got sent to a small conference room where we met, individually, several senier members of the QA team including the director of the whole dept. You should expect some technical question. Read up on Quality assurance as well as the agile and waterfall systems development model. They will ask you the typical questions such as what is a weakness of yours and what can you bring to the team as well a "google interview" question such as "how many hotels are in NYC".