I think the problem with CDG is that as soon as you leave the immigration area and out to the main terminal/arrivals area you are greeted by a wide variety of people of all different ethnicities and economic classes. It can be daunting to try and push your way through everyone who is waiting for their loved one coming from XXX blended in with folks pushing their carts through towards check in. It can be rather unnerving if you have only experienced airports with barricades separating the passengers from the greeters (LHR) as an example.
I don't mind it so much, I used to scramble through there to get to the AA CDG arrivals lounge pushing my way through (excusez-moi, excusez-moi) to get to the stairs that would lead you there. However, now I'm more apt to wend my way through the crowd towards the RER/TGV station and wonder where all these folks are going.
As far as terminal 1 is concerned. I liked the habitrail like qualities of it and the very cool TWA check in desk (for Ambassador Elites), with all that mosaic tile, it was very retro.
The duty free in terminal one was/is better than AA's terminal 2 duty free for sure.
lala