Throughout my several interview rounds, the interviewers showed up half an hour late, didn't know what position I was applying for, and didn't have my resume in front of them.
Both of their disregard for my time and complete lack of organization left a bad impression of a company I previously thought would be great to work for.
Amazing talking with everybody and they are always giving you updates about the process. Since the first contact from the HR department until the last interview they were really nice and always being clear about the taks and jobs to do with them.