It was an odd interview process. First round telephone screen, where they ask you what you'd improve about the product. From what I've heard, everyone passes this round as long as they have a couple things and then they give you a project to work on. The project takes a while.
If that goes well, they have another phone screen with you where they ask you plenty of questions about the project.
If you get past that, they call to gauge your interest and invite you onsite.
For the onsite, there is 1 technical interview and maybe 4-5 PM interviews. They ask some seriously weird questions, including brainteasers, very odd behavioral questions. One PM asked me how I make decisions; when I told him the standard industry techniques, he told he'd never used them before and it was something he might have learned in college.
I left the company with no idea on what opinion to have..