Perhaps the network was concentrated, or the connection was bad, and the path could not be opened until the last entrance, and I was treated to a scene where I was confused. The last Montparnasse network moth was connected and I was able to enter. I was able to enter without any problems because the other pass was reserved. Shuksho of the pass in advance, recommended.

The view from the terrace is really worth the cost of the ticket. I recommend going there in the evening to see the city lit up. Affordable 56th floor bar and souvenir costs. Important: Make sure you have the barcode ticket and not the QR (square) from the app. We arrived a few minutes late from the booked time and the code generated by Get Your Guide had expired, even by entering the reservation number on their system (zero staff flexibility since the ticket was paid for and they wanted us to buy it again!) We remedied this by contacting the Assistance Service via chat, which promptly resolved the problem by sending us a barcode for the next time. So either you anticipate (consider a bit of a queue) or have the exact barcode generated (their optical reader apparently only reads that ..). Have a nice tour

Got on without problems, in these activities there is always a separate queue for those who already have a ticket, the bar is on the top floor covered, above only the terrace with binoculars (for a fee) and comfortable seats, and the music. The landscape, despite a bit of haze, is sublime.