Just want to say that I've seen the fifth series and thought it was pretty good.
I'm still in "getting used to the Matt Smith Doctor"-phase, but it seems like he's doing fine!
Personally I thought some of the episodes were very poor, especially the last two episodes.
They were confusing, not funny and boring. This left me disappointed.
Stories like second series' "Doomsday" or the three-parter "Utopia"/"The Sound Of Drums"/"Last Of The Time Lords" and also "The End Of Time" were much and much better as a closure.
But there were also some outstanding moments like in the two-parter "The Time Of Angels" and "Flesh And Stone". Also, I think "The Hungry Earth" and "Cold Blood" were very enjoyable. Brilliant stories. Same goes for "Vincent And The Doctor". Great acting too.
Since I see Steven Moffat as a more than qualified writer, I'd like to see where this will go.