[ghaff]

>Changing between terminals at Heathrow is much less fun.

I decided to stay at a Heathrow airport hotel a while back. Turned out I had to change terminals and I'm pretty sure it took me at least as long as getting a shuttle bus to one of the hotels would have taken.

You often have to walk quite a ways too.

Overall though Heathrow is pretty good among the large European airports.