I have used PandaTree for Mandarin lessons for two of my children. My oldest child is an intermediate level (5 years of Mandarin immersion in public school) and my youngest child is a beginner level. We have used the same tutor for both children and she was great to adapting her lesson for the skill level of my children. She uses lots of songs, rhymes, props, and the technology available on the PandaTree platform to reinforce the learning. After our sessions, I also get an update on the materials covered in the lesson as well as tips to help my kids make progress in their language acquisition. I highly recommend PandaTree for its ease-of-use, fantastic web-based platform, and the experience of the tutors.