Carol and I boarded at no 20 on the blue route, swapped to the red route at no 8, Deira City Centre Shopping Mall, with a 25 minute wait, and after 3 1/2 hrs finally made it to the Gold Souk, no 6. Coming back was a bit quicker, again swapping routes at Deira City Centre. But it's a long day and we didn't get time to visit the Dubai Museum or do any of the tours included. A separate ticket is issued for the Arabian Dhow Cruise which remains valid for a month. These were used 9 days later and well worth going.
The Blue Route has live English Commentary, whilst on the Red Route, one is provided with a set of earphones and there is a choice of 8 different languages. Everything is Dubai, is bigger, taller, more modern, more expensive and better than anywhere else in the world;)