We had an amazing experience with Vibe Adventures on their private Iztaccihuatl tour from Mexico City. Our guide Jorge was fantastic and the views were stunning. The hike was not too demanding (we are regular hikers) and we could reach gate 4 in about 3.5 hours. The sightseeing and market food experience in the local town Amecameca was also nice, it shows the way how real Mexico is, and the food was also yummy. Highly recommended!