After watching the first three episodes with Matt Smith I am not that impressed. The first three seasons were the best with the fourth being about 50/50. This new fifth season has me at about a 40 percent approval rating.
On the other hand I did get a laugh out of this UK Comic Relief skit with David Tennant and Catherine.
http://www.youtube.com/watch?v=WxB1gB6K-2A
It's odd. The production values are excellent, the attention to detail is exacting, the acting is excellent (Matt Smith is good as the Doctor and Karen Gillian is a great assistant) and the special effects are better than ever. The problem is the writing. There were so many gaps in the plot of "victory of the Daleks" you could have flown a fleet of tardis' through them. When the pepperpots got the testimony, why did they beam straight back to their ship rather than "exterminating" all and sundry (including their greatest enemy)? How did the spitfires get fitted for space travel so quickly? How do they fly through space with prop engines? How come the "crippled" dalek spaceship is suddenly fully able to speed off through time at the end? Why don't they blow the earth up before they go? Why don't they exterminate the Doctor immediately they find out he doesn't have a Tardis self-destruct? If the Daleks in the Time war had access to genetically superior Daleks, why didn't they create them straightaway rather than keeping going with "inferior" ones? And on, and on...
I haven't given up yet (the first half of season three started with some mediocre episodes before the triumphs of "blink" and "Family of Blood", but they have got to do better than this...