We took a 2 night 3 day cruise with Au Co (unexpected free upgrade from Bhaya Premium). My family had an amazing time. Au Co go to places that are not busy (many caves and floating villages are so busy there are waiting times of up to 30 minutes). We were alone in the cave we visited and this was the same case at the fishing village. We were basically alone when we visited an inhabited island. The crew were fantastic and the food was of a very high standard. My kids are picky eaters but the staff were very accommodating and made an effort to ensure we were happy.
I would strongly recommend this cruise. My Wife has already asked when we are doing it again. More