I have studied HSK 1 and 2 at Silk Suzhou branch. It's been a great experience; I've improved my Chinese a lot and have become more confident in using it. My teacher Lindsay is very nice and puts a lot of effort to make the classes enjoyable. She often teaches extra material that we might find interesting or useful, such as vocabulary or some everyday idioms. The materials such as the Silk PPT and flashcards are good and they help to make the meaning clear. Siqin the CC is always very friendly and welcoming too. It's a great place to study if you want to improve your Chinese quickly.