G-Research Analyst interview questions

First I had to do an online test which was not difficult at all and straight away I was called for an interview. I can't talk about the actual tests as I had to sign a NDA. I went to the company 3 times to meet two managers as one of the interviews had to be rescheduled. Overall I spent at least 4 hours with the company and even though I was told I would get a answer about my interviews it never happened. The company went quiet about it. The whole process seemed suspicious and strange but the managers/HR seems to be nice and friendly.