Merck Sr Scientist interview questions

After applying online and a first phone interview with the hiring manager, within a week, I was invited for an on-site interview day. The day consisted of multiple (about 7) 1 on 1 interviews and a scientific presentation. I arrived a day ahead for dinner with part of the team and Merck provided stay overnight and transportation. The 1 on 1 interviews with group leaders and high level scientists were interesting and fun, talking mostly about previous experiences and discussing how I would see my contribution to this specific role at Merck. At the end of the day a final talk with the hiring manager, where was said that the hiring process would be finished by the end of next week, so there was clearly a hurry to hire someone. But instead of the promised week it took them 3 months to get back and they didn't respond to request on status updates from my side, even though previous contact had also been directly to the hiring manager. In the meanwhile I took another job offer, so the disappointment was not that big after they finally got back to me. Concluding, the aftermath of the interview was very poorly handled by Merck and that greatly influenced my overall experience with the company.