My adult son and I did a 12 day private tour from Hanoi to Ho Chi Minh City, organised by the lovely Minh from Custom Asia Travel. Initially Minh asked us many questions about what we liked to do, were we prepared to cycle etc, and then she proposed an itinerary for us, and offered 3 levels of hotels to choose from. (We chose the middle level and thought they were all wonderful) As she told us many times we had great flexibility and could alter details as we were travelling privately. We flew into Hanoi, and visited Ninh Binh and Halong Bay from there. Then we flew to Danang, spending time in Hoi An and on the coast at Danang. We requested a three day seaside stay as a spot to relax.-the Furama Hotel was a fabulous suggestion and we organised an upgrade to an Ocean Front Room. We had 2 free days there- and enjoyed the opportunity to make our own way into Danang, and to Ba Na Hills, as well as swim at the beach and in the pools of the hotel. Finally, another internal flight took us to HCM for our last couple of days, and from there we visited the Cu Chi tunnels and the Mekong Delta. We were met at each airport for a private transfer to our hotel. Day tours were in a private car with a driver and a guide from the area. The guides were knowledgeable and often gave great recommendations for restaurants to visit in the evenings. If we had any questions we could text Minh and get an immediate response. All in all, it was a well thought out, perfectly paced tour for us, with no issues along the way. I would highly recommend Minh and her team for this sort of tour, as an alternative to packaged group tours. My only suggestion to prospective travellers- remember that May is one of the hottest months, often 39-40 degrees, so maybe choose another month, or be prepared for the heat.