Google

The first interviewer never showed up. The subsequent interviewers all seemed tired and uninterested, with some even becoming verbally upset for seemingly no reason. Overall, a very poor experience. The questions themselves were not too difficult;

Great interview. I want to try again later because it would be awesome to work for Google one day. I would love to try again.

Usually, there are two phone interviews and then a 4-hour onsite. However, I skipped one of the initial phone interviews. Also, because I did not do too well on the design interview, I had to come in again specifically for another design interview.