Loved it! Hilarious AND scary both at the same time.
[Spoiler (click to open)] All the celebrity cameos (and there were a lot) put me in mind of some of Russell T. Davies' episodes, but I thought Lord Sugar was hilarious.
Best moment was the Doctor painting the Ponds' fence and mowing their lawn, coming back and finding he'd only been at it one hour, though there were plenty of other moments, including the Birdy Song, and the disastrous honeymoon kiss (Rory returned the Doctor's gay kiss - get them a room! LOL)
Rory's dad was great as ever and I'm wondering they'll somehow find a way to bring him back even after Amy and Rory are gone. He's a good challenger for Bernard Cribbins as Wilf, and they ought to just put both characters in an episode together just for the sake of it.
The Brigadier's daughter/replacement was a fantastic character, and I want to see more of her.
The whole plot with the "cubes taking over the earth" and the "alien pest controllers" was intriguing, and I suspect we have not seen the last of these characters.
On to the next episode, the scene with Amy and Rory falling in the trailer looked ominous, but since the BBC would never spoil anything like that in a trailer, I suspect it was a red herring.