This was a very negative experience.

I waited in a cramped lobby with no bathrooms for 45 minutes because my recruiter was late in meeting me. The interviewers were not prepared. The conference rooms we used didn't even have whiteboard supplies.

To be fair, the people I interviewed with were very nice. I also received free lunch with one of their engineers, which was much more social and wasn't part of the interview cycle itself.

When my recruiter called me several days later to reject me, they didn't even bother to give me any feedback. I asked what went well and what didn't, and for anything I could improve on. I was blown off.

For such a huge, rich company, the whole process was very unprofessional.

They asked about any interesting or challenging problems at my current job.