First round with a recruiter, pretty basic. Second round with a Hiring Manager, where I needed to solve a threading issue and didn't do well.
Both were super nice and made sure to conduct the interviews really well.
I didn't do well on the technical interview, but what really messes up the whole process is that I still didn't receive an answer from them, Usually when a company doesn't give a feedback, that's not really nice, but not even bothering to send an email or a message saying someone was rejected is a new low. I found it disrespectful and would not apply again.