Unfortunately my experience turned into a nightmare - as when leaving the Eiffel Tower and getting into a Taxi (via Entrance 1), the taxi driver scammed me (with the card reader) and I ended up losing 900€ out of my bank.
My promised e tickets did not arrive the day before as promised , I ended up queuing up and purchasing 2 more tickets at the venue,
Very nice, tickets straight away, no problem. I could get tickets here when unavailable from the Eiffel Tower
We ended up getting different tickets once we arrived because they were so much cheaper at the site. These were a great place holder in the event they didn't have anymore tickets
My only issue was no signposting at the beginning so had no idea which line to join but once through security it was straight up the tower. We enjoyed the exercise of the stairs and the viewing platform for photos was great.