5 star service from beginning to end

Vietnam is a beautiful country rich in history and filled with incredible sights. You can Google all that. My review is specific to the service and quality of the tour. We were able to change the package to suit our wants. We spent the last few days at a beach resort in Mui Ne Beach Pandaros resort. Best resort we have ever stayed at in all of our travels!
From the start, Liem the main contact at IZ, was available even before we got on the plane, upon arrival and when needed and kept in constant contact with us. One hotel was listed as a 4 star but it was closer to a 2 star. Liem without hesitation booked us in at another hotel. We were unlucky to be in Hoi An at the start of flood. She got us rerouted back to Hoi Chi Minh ASAP then adjusted our itinerary for the missed days in Hoi An area. She made us feel safe and secure despite us not ever experiencing a flood in our land locked lives! I came down with bronchitis and Liem made arrangements for a team member to get me meds. The tour was then switched around doing the less physically demanding tours first. Just to give me time to recover. The tour guides were fantastic! All three, were educated and extremely knowledgeable on the history of Vietnam, all were friendly and professional and helpful. All were willing to go at our pace and stop for a beer! I can't provide any constructive criticism to improve. All were perfect! The SUVs were top notch. The drivers excellent. Drivers English was limited but Google translate to the rescue and all vehicles had wifi. The restaurants that were prepicked by the tour, were all exceptional and the menu, food and service at these were wonderful.
After doing a private tour, we will not book the bus tour with 30 other people ever again. We felt spoiled.
We will return to Vietnam and will book again through IZ.
We have friends doing a similar 21 day tour, they are with 30 other people and booked through a travel company in Canada. Their cost is twice what we paid. They are stuck in Hoi An due to more flooding. Their tour company isn't rerouting them and have not mentioned refunding the missed tours - we did receive a refund despite spending extra day at the beach resort and Hoi Chi Minh.
We will confidently book again with IZ tours. 5 star service from start to end.