Goldbrecht R D Engineer interview questions

It was a decent interview, got to learn a lot. But very unprofessional from Goldbrecht to not to respond with an offer or rejection. They just keep interviewee hanging even after months or may be never get back to them if they are not interested, which is very unprofessional to somebody who is waiting for your response and has invested her time and efforts for interview. It doesn't matter if its acceptance or rejection but they deserve a response.