In the north we stay at national park accommodations at Cuc Phuong. The accommodation is in simple rooms at the park headquarters with air-conditioning, private bathroom facilities and hot water while at Tam Dao we use a nice hotel.
The hotels in Central Vietnam are the best available at each location and although simple all rooms have air-conditioning and private bathrooms with hot water and just have once place we need to stay in guest house lower stand because local conditions.
In Dalat we stay at a comfortable resort hotel. At Cat Tien National Park the accommodations are similar to those at Cuc Phuong National Park but you could also upgrade room with a private hotel.
In Mekong delta, there are many choice for staying.