While I enjoyed TGWW, it was somewhat spoilt by the whole plot depending on them all being very stupid! Firstly - the Dr and Rory walk through an door in an unknown facility, letting it close behind them between them and Amy. !!! Secondly, 10 seconds after deciding which button to press, Rory absent mindedly shouts out "just press the button". No, of course he wouldn't, he would make it quite clear which one. Thirdly, Amy, confronted by 2 buttons, doesn't shout the obvious retort "Which button, dipstick?" Oh no, she blithely presses the red one!
All of which was just completely ridiculous, and meant the whole situation was rather contrived. Then when you add the "Amy mutates into SuperBrain" bit - oh look! I made a Sonicthingy! Reprogrammed the computer! - it was all a bit meh, really.
Next weeks does indeed look scary though, excellent.