I have 5 round onsite interview, including one round of lunch interview. Everyone is so nice to me and make me not nervous at all. They ask a lot of questions about algorithms, data structure and oo design, but they are all easy to handle and easy to be solved by giving a hint, no tricky problems like Google. The entire interview lasts for about 4 hours, and then I wait for half a month to get the congrats email from the hr.