It's been a while, but experience varies widely depending on which position within the company one applies for. Some recruiters really don't get back to candidates for months... Very little feedback is offered in the interview process as well.
People are very nice and very fair, but the bar for getting in is very high and they look for extremely smart people who also demonstrate a very strong motivation to work for this company. If you weren't always at the top of your class you probably won't make it through - that's how high selectivity there is.