Google

There are two rounds. The first round's question is very hard, perhaps at LeetCode hard level. The second round is easier; it is a "presume" question, perhaps at LeetCode medium level.

Good and long. The recruiter was very responsive, while the interviewers differed across rounds. Some were nice, and some were very tricky to deal with. Overall, it was a good experience.

The interviewers are nice, but the questions are difficult. There are two rounds of tech interviews, which are not back-to-back. English and Chinese interviews are randomly picked; you should prepare for both.