Sounds about right

Just to give you some more feedback, we have a large cube (around 9.5bn cells) which is loaded daily. We slice the daily loads and then merge and re-aggregate over the weekend. A Basic set of aggregations (7 views) takes 1 hour. But then we do a number of other aggregations based on query tracking which adds another 27 views and trundles along for another hours. Hope this helps...