Gare du Nord is a really big station, but there are plenty of signs, so it's not that hard to find the B line.
Also, a few nice building on my way there
My train was a speedy version of the B line, so I reached CDG in about 30 minutes, ride was 13 Euros, as I used my card purchased in the morning. After that, I had to go to the CDGVal, to transfer to T1, it takes about 10 minutes. T1 is the worst terminal for me, but I was able to find the check-in quite fast. There was some line, as only staffed desk is reserved for premium passengers. For Economy you have the self drop station.
There is a long walk to the LH section of the airport, and security is at the end. Please keep in mind, that in this section there is only one small shop, so if you plan to buy something, that's not the best place to do so.
Lounge is 1 level below, with 2 sections - Business and Gold. In the business I was about a year ago, this time I headed to the Gold one. It was crowded, despite an hour before first flight of the evening part of LH group departures.
Food and drink selection is OK, but no bells and whistles. Toilets are slightly outside, no showers.
I was full after the lunch, so the only thing that I ate was the sample of the Financier Chicken, just to taste it. OK dish. I also sampled some cremant and red wine .
There were 2 tap beers - one German and one French, but the tap system was full of CO2 with no regulation options, so you got mostly a foam, which after some time transferred into a half of glass of beer. Tried the French one, and it was OK.
WIFI was really slow, really. I tried to post an update of this trip, but uploading photos took ages.
Overall - really mediocre experience in this quite important airport. Seen better lounges for sure. OK, time to board OS flight to Vienna.