Sde applicants have rated the interview process at Google with 4 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 61.5% positive. This is according to Glassdoor user ratings.
Here are the most commonly searched roles for interview reports -
The medium difficulty process was a good interview. Asked many questions on the data structure and algorithm and a whiteboard solving challenge. I already got an offer from another company so I went to that.