I joined Sunflower twice before and went to Korea and Haikou. The tour to Korea was changed after paying the final payment and we had to join another tour. The tourist guide was late to pick up us twice, including the date of arrival.
For the tour to Haikou, a small van was used due to the small size of the group. Some guests were forced to sit on folding chairs while the road was rough at that momemt.
After these bad experiences, I never join sunflower again .