Time-wise you can get from the airport (usually the flight to Switzerland from US travels overnight so you arrive in the morning but with little sleep) to Oey/Adelboden in about three hours but allow for lost luggage, plane delays, etc.

English is the spoken language at Our Chalet.  However, Switzerland has four languages: German, French, Italian and Romanish.  Each canton (similar to a state) has a designated language and you may be traveling though several on your trip.  As with any international travel, there is a difference in the language, culture, customs, holidays, dress, etc. that you need to know.