Oh I wouldn't say that. I think all forms of public transit stink in some way. Doesn't matter if they're Muggle or Wizard.

The Hogwarts train is pretty convienient for people who live far away though. I'm sure trying to wrangle your entire family via a magical transport method can be a chore.

No, but they're awesome. I'd take traveling by one of those than Apparating or the Floo network any day.