I got into the second round of interviews, however I didn't receive any feedback (after asking several times) on why they didn't accept me in the end, which I find very unprofessional.

The process was quite smooth. It took just two weeks to go from assessment to interview process. After the call for HR screening round, I received recruiting friday call within 2 hours. On Friday, the process started from 9 am. Company presentation, then one round with marketing director and then two HR rounds.