All of the communications were highly professional. The interviews were typical of what one would expect, 2 behavioral/case interviews in the first round and 3 behavioral/case interviews in the third round. Preparation is a must to perform well, however having a positive attitude along with some luck always helps. The number of interviews is helpful in getting multiple opportunities to show one's skills; conversely each interview provides a further opportunity to fail. In order to obtain an offer, every interview must go reasonably well.