Mission is quite good. But from what I really hated is that in this mission Garrett was allowed to murder dozens of his former colleagues. He wants to find the truth and perhaps redeem himself - but he is allowed to murder every single person inside. Storywise it's just stupid.
Mission ending is not so grreat - true. Would be different if TDS kept slowfall potion.
But rest of that mission is masterpiece. First half not having any enemy - first time you play you don't know that and it's scary like hell. But even replayability is great. Plus great reveal in the attic. This mission is culmintating point of whole TDS.
You rated it 1. Seriously? Then how would you rate "Escape!"? I admit that you might not like the Cradle, but rating of 1/10 means it is utter trash.