Unprofessional & Untrustworthy - After 4 weeks of interviews with 4 different levels within the company, I was offered the position, signed their letter and prepared to begin working. 3 days before my start date, they emailed with a curt note saying revoking their offer. No explanation or apology. Since I had turned down another offer, I asked for more information. I didn't get it. The worst experience I've ever had.