I'm only two episodes in. I'm not smitten, but it's enjoyable. I can't stand missing backstory, so I'm planning to watch the entire series in order. I really like the chemistry between Rose and the Doctor. (What do you call him - Nine? The Ninth Doctor?) But I admit I chuckle at how awesomely bad the special effects are. I caught the phrase "Allons-y, Alonso!" on a YouTube video so now I need to watch until I get to that episode.
I currently eat, sleep, and breathe Sherlock. A lot of Sherlock fans seem to love Doctor Who (as evidenced by all the "Wholock" stuff I keep stumbling across) so I thought I'd give it a chance.