We did the Cityrama tour in August last year, it would have been a little cheaper to have booked when we initially booked the holiday but we wanted to get to DLP and spend a few days doing what we wanted before decided on setting a day aside to go to Paris. In the end we booked three days after we got there for the Sunday.
Picked up (as mentioned above) at the Hotel New York at 10am, we had to be there around 9:15am though, 2/3 coaches turned up and you went on the one according to the language you spoke (ours was English/Spanish). Tour guide was very good and the driver excellent!
Everything was explained really well and using the headphones for the city tour was brilliant, we learnt an awful lot!
Included in the price was the river trip (one hour) and the first floor of the Eiffel Tower (90 minutes), no queues for us we were shown straight through.
On the way back we stopped at the Louvre for an hour, long enough to browse the shops and gardens and take plenty of pictures.
We left Paris just after 5:15pm and we were back at DLP for 6ish, had a nice cocktail in the New York Hotel and then spent the rest of the evening in the park.
Yes it would have been cheaper to go via train but this was perfect for us as our first trip into the city - now we know exactly what we want to see next time and we'll use the train for this (she says bravely!)
All in all I'd highly recommend this.