I gave it "good", I think it's probably about the fourth best, probably equal with "Rose", but behind "Dalek" the 3rd one and the 2nd one. I notice people seem to be getting alot more critical than they were with "Rose", even though I don't think it was much different, quality wise, as I've mentioned before, I think that's because the "honeymoon period" is wearing off.
Sure there was a bit of sillyness, but I'm starting to accept there's always going to be a bit in every Dr W episode (even "Dalek" had some, with the Dalek trying the keypad for millions of combinations without the keypad wearing out or burning out (and hows that make it a genius?) and the "downloading of the internet"). I thought the doctor wandering up to level 500 without much caution was a bit daft, plus noone immediately to meet them, same with the girl, the way she just wandered around level 500. The answerphone bit was also daft, as well as the mobile phone calls back to present day - that was ok for a bit of a joke, but it's wore thin. The "key to the tardis" as well, surely he isn't going to protect the Tardis with a key anyone can use? The ending was a bit unsatisfying, "give me full access" or whatever, then she can totally takeover. Errrr, ok. Perhaps it could have been better fleshed out if the level 500 access point had been described as a special access point that gave full control. Ok, perhaps she could do that because of what the doctor did in that cupboard, but it was a bit unsatisfying
Plus sides I thought were Simon Pegg, who was great. I'm surprised that the corrie guy has been slagged so much, I think he's a pretty good actor and gave a good performance. I liked the social commentary, that the human race is quite often sheep who only think what the media tells them to think. I thought the alien was ok, but might have been better if it had been some huge alien brain in a huge tank, instead, being fed all the information. Did it need to have teeth? Did it need to snarl alot? That didn't seem to match up with it's supposed intelligence.
Like most people are saying, some good ideas, that could have been better thought out. But not all bad either.