Initially, it was only an HR interview, a logical test and a tech interview. They added a technical project and another interview in the end. By the end, they made me wait a whole week, after doing quite a few stages, to get a no. It's part of the process, I know, but disappointing nonetheless. I kind of think they knew by the second interview and the process was really long. But overall they were very polite and kind. I think more detailed feedback would have been good - maybe a call instead of an email - considering I got so far in the hiring process.