Rivery Technical Support Engineer interview questions

Basic 30 min interview, some technical questions, nothing too difficult. The first interview wasn't with HR though, was with someone working in the position currently. I got a 2nd technical interview, which took a couple of hours to complete. Was very disappointed that all I received after spending that much time on it was a "We're impressed with your work, but we've decided to move forward with another candidate ". The lack of even a little feedback rubbed me the wrong way after committing a couple of hours to the tech interview.