The 4 stages of interview took almost 4 months. I was promised to receive an answer about further steps and got a late response about 2 - 3 weeks every time. At the last Interview I came at their office spoke with Co-Founder and a worker there. I was asked about my practical task. At the end the Co-founder said they will respond in about 4-5 days and did not receive any response. Every time I was sending emails to receive a response.