This really is entirely up to you. If you already have a fairly decent grasp of Mandarin then placing you in a group is much harder because levels tend to vary much more from the intermediate levels upwards. If you are a complete beginner, or have a little basis in Mandarin perhaps the Intensive course (4 hours Group, 2 hours Individual) would be a great way to start. Likewise, if you have particular things you want to learn, 1-on-1 is probably best because you can tailor the classes to what you want. Give us a call or an email us and we can chat about what suits you best.