The whole interview process with Genzyme took awhile to complete. I would have one interview say with an HR person and then weeks would go by before I heard anything. Then I would be asked back for another interview with a different person. Then I'd wait weeks to hear back from them. Then on my last round of interviews I met with a good number of people in the department. They were all very nice. The offices are amazing as well. They asked some challenging questions during the interviews but nothing too out of the ordinary.