The needed context seems to be that the person you are replying to is German. I don't love Schiphol either, but it beats any German airport (looking at Frankfurt in particular).
Changing between terminals at Heathrow is much less fun.
CDG I find confusing.
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.