This episode stands out as being different from the rest even though it's a two-parter. It drives away from the normal stereotype of a Dr Who episode and shocks you quite a lot.
It is fairly clever in the way they defeat the cybermen. It is also quite spectacular in the way that they defeat the CyberLeader.
It isn;t the best episode so far, and the acting is a bit weak but at least it wasn't the worst episode.
7.6 is a reasonale score, the worst Dr Who episode (Boom Town) I would give a 6.1.
All in all a fair episode by Dr Who standards.