Precision System Design Recruiter interview questions

Most unprofessional process I’ve been apart of. Wouldn’t recommend applying here. They made me do four interviews, an at home assignment, and the final interview that went on nearly four hours. After all of this, they just stopped communicating completely. Also ignored my follow up emails. I would assume that a company that does recruiting would have the decency to send a rejection letter that takes two seconds to do. If this is how they treat an internal interviewee, I could only imagine they’re a lot worse with external applicants. What a waste of time.