It was OK.
It introduced the Doctor, his new assistant Rose, the Tardis, sonic screwdriver and the general Dr Who story to a new audience. It didn't build any real tension up during the show, but then it didn't really have any time left to do that.
Hopefully future episodes will be able to devote more time to the story and less to bringing new viewers up to speed. I'm quietly optimistic.
Cheers,
Liam