We have just come back from a 23 days trip of Bangladesh, which took us almost to every corner of the country. We experienced traveling by trains, cars, boats and planes. It was very interesting and very hectic as well.
All the people we met was very friendly and curious, and probably not used to tourists, we felt special, as hundreds wanted to take selfies with us. The itinerary could have been better by less mosques / temples, and more free time. The drivers were friendly and good drivers. It is important to remember that the driving pattern is much more chaotic than in the western countries, but we felt safe all the time.
Our guide for most of the period was very knowledgeable, had a keen eye for spotting wildlife (we did see the wild fishing cat and king cobra). His name was Arafat, and we highly recommend him.
After a long deliberation we found that the long drives and lack of free time did not warrant the highest score. So we will give it a 4.