It was better than most previous episodes, but the plot holes were so big . The forcefield and the crashed cruiseship, a few daleks could easily take care of things in the asylum with maybe the exception of Dalek Oswin, why did they need the doctor? Why did they have an asylum in the first place, it seems un-Daleky?
That said, I enjoyed the episode, but it isn't one of the best.
then there was this plot hole scaro was destroyed by the 7th doctor in Remembrance Of The Daleks but it was good