We absolutely love Panda tree! My daughter started right before she turned three (she is now about to turn four) and the preschool program has been amazing! She knows her colors, numbers, body parts and how to say simple phrases all in Chinese. And the best part is I've learned alongside her so I'm always able to help her remember her vocabulary and practice! Even her younger brother who is almost two loves to sing all of the songs from the lessons so he is also learning Chinese! My daughter started with Xin who has been patient and always keeps the lessons interesting! She even incorporates all of the animals on our farm in the lessons so my daughter knows how to tell people how many of each type of animal we have on our farm in Chinese! over Christmas vacation she participated in Winter camp and was able to take classes from many other teachers as well and absolutely adored every teacher she had the opportunity to take a class with. There is no wrong the teacher in this program, they are all excellent! Choose Panda tree for your second language learning needs, you will not be disappointed and it's worth every penny!