Sinh’s tour is worth 6 stars. He and his wife are very knowledgeable, friendly, and fun. The trekking is beautiful (many views of the rivers, water buffalo, rice fields, bamboo forest, waterfall, etc) , and he has alternate routes depending on whether you’d like to hike a little or a lot each day. We did the longer trek the first day and the shorter the second day. The food both on the trek and at the home stay was the best food we’ve had in all of Vietnam (so far we have been in HCMC, Hanoi and Sa Pa). The home where you stay the night is also very wonderful and spacious, with delightful hosts. To anyone visiting Vietnam or having an interest in Hmong culture, I highly recommend this tour.