I bought this Complete Specials because I wanted to see Timothy Dalton playing the Lord President. There are 5 stories in this box-set.
The Next Doctor was great. It reminded me of great time I had had when I watched the episodes with Eccleston. I think David Tennant is a great Doctor and I like him and I'm considering to buy another box-set with him as The Doctor. I enjoyed watching the Confidential in all 5 discs. This subject of an alien who travels into space and time can make the writers very creative. I mean, how else can you make a giant robot pop out in Charles Dickens' time and make the audience love it?
Planet of The Dead is also very good, and they manage to include another famous thing from England, which is a red double-decker. I think all episodes in this box-set are very good, but The End of Time is dark and depressing. I had fun watching the other 3.
The Waters of Mars is my least favourite. In 3/4 of the show The Doctor keeps saying "I have to go." and I went '-oh, so in this episode you cannot do anything for them? What the use of writing an episode like this, then?' In the end he did do something for them, but it turned out to be a mistake.
The End of Time goes in 2 parts. The end of part 1 is so thrilling, with people all over the Earth turned into The Master (The Doctor's enemy). Couldn't wait to watch part 2 because I had no idea how The Doctor could help the humans.
I think the series has progressed so much since 2005 and it seems that they had more budget. Specials effects, costumes, make-ups, lights; all are much better. I don't know if it's because it's the Specials. I will see when I get another box-set.