A comprehensive tour of the three sites, with a knowledgeable guide.
We chose this tour because it was the longest and cheapest of those on offer, and promised us a snack of fruit, cookie and bottled water.
It was a bonus to be collected from our private accommodation in Condesa, outside the designated pick-up area.
Our guide was knowledgable and helpful, and deepened our understanding of Mexican history and culture - this to me is the real value of a guided tour, all that knowledge included.
We had plenty of time at each site, including time to climb the pyramids, and the bus was air-conditioned and comfortable.
Be aware no water or food is sold within the pyramid site. Our promised snack didn't appear, and it was a very warm day, so I had to take time to walk out of the site to buy water.
The usual tour-connected shop stops occur, but they were good shops to spend time in - a souvenir shop near the Shrine of Guadalupe, a souvenir shop outside the pyramids, with an excellent talk/demonstration on agaves, and a restaurant with a good buffet lunch.