• Free lesson notes: Teachers provide typed PDF notes after each class.
• Standard reservation period: Classes can be booked starting 3 days in advance.
• Loyalty stamp: Digital stamp card; receive a free class voucher after 20 classes.
• Instruction by full-time teachers (non-native speakers).
• Make-up classes: 1 session (requires 24-hour prior notice).
• VIP customer service: Direct human contact via WeChat/WhatsApp (no ticket system).