Charlie Brooker at the Guardian has an amusing if slightly critical overview of the show in his column 'Screen Burn'. He's known for his comic cynicism, so I would take his words with a pinch of salt.
The Times asks which is better - Doctor Who or BSG? Of course we know which one wins, but it's not really a fair comparison imo (adult show with big budget versus family show that needs broad appeal...)
A glowing review from the Radio Times
There will probably be a few more reviews tomorrow once it has been aired.
ETA: Another piece in the Guardian speculating on the show's end.