They put me up in nice hotel but actually switched my hotel at the last minute. There were about 4 45 min interviews with the Xbox connect team which we were randomly assigned to. 3 were technical (one about databases, one about C, one about some basic java algorithms) and 1 was goals/strengths oriented.
As has been stated before, they will really delve deep into anything that you say you "know" so make sure you know it