Yes, but not as much as I used to. It's not just because David Tennant left, or even the new characters. It's the way the whole show comes together, the writing, the plots, etc - it just doesn't have the same spark that it used to.
Yes I do like it and I think this series is better than the ones before it as I think Matt Smith is much better as the Doctor, (Although David did have a better fashion sense ). The special effects are pretty crap though but after all it's to be expected, the BBC are tight bastards and also there's no way we can compete with America' epic CGI skillz!