I tried to be open minded about CDG terminal 1 as I had only connected through there before and thought that the condition of the terminal was due to a hectic weekend. Check in with NW wasn't smooth but I think it was NW final day in that terminal. Experienced no problem with customs or inspections besides a poor restaurant referral.

On the RER, the signage inside the train shows the stop marked Terminal 1 but when you arrive, you aren't in Terminal 1. You arrive in a new looking concrete structure.

The sign pointing the way to terminal 1 isn't well located to see as you step off the escalator unless you know to turn left at the top and then look for the sign. I had been warned of having to take the shuttle to Terminal 1 but pity those who don't know ahead.

Inside the terminal, there is one woman's toilet down the basement by the McDonald's and it is very hard to find. Beware if you find it, it's the filthiest, most vile mess in a bathroom ever seen and I used to work at a nursing home.

The cafeteria down there is a total tourist rip off where they charge more for the per plate supplement than they do for the meal. And don't warn you ahead of time about these excess rip off charges. Then they hide behind the language when you complains. They say it's the system and agree it's unfair but that's just the way it is.