It didn't age that well, it's goofy, the premise was nothing unique for its time, and the acting was... well... British.
Now that I have your attention, and quite possibly your eternal hatred, let's get to what's good about the Dr. Who Pilot. I liked it. I like Doctor Who, but come on - the series begins with an almost five minute montage. Now, it's a montage of a really good looking British blonde that manages to establish that she, Rose, works in retail and has an adorable boy-toy, but it's still a montage. Oh, and it also introduces the score, which has really quite grown on me after many hours of having it stuck in my head. The saving grace of this pilot is definitely the two stars. Rose is a lot smarter than you'd expect, and the Doctor is immediately the kind of wise-ass you really hate to love.
The Doctor is a Time Lord, an alien who uses a phonebooth-looking thing called a Tardis to travel through time saving humanity again and again from extinction, invasion, and our own stupidity. It's said of him that "He has one constant companion. Death." Well, that companion will become Rose, which is a much lighter turn for the series.
Indeed, it will take an episode or two before it becomes clear that the Doctor and Rose have very few limitations. The only recurrent element is that pretty much everywhere they go, humanity is about to face extinction, and the Doctor saves us from our fate. Or at least, he has so far.
It may not have aged fantastically, it may be a little cheesy, but I'll tell you what it has got: the tension to make you think the world will end in the very pilot. And again the next episode. And the next.