The Hotel Lotschberg is a great place to stay. Very close to Interlaken West train station but far enough that you don't constantly hear the trains. View from my attic room are spectacular--huge window opens so you can enjoy the fresh air.
There is free wi-fi that I used on my iPhone. Free bike rental, though I had a hard time mastering the "European way" of getting on a bicycle.
Go to the back of the building to check in-- right by the bicycle shack.
Fritz and Susan are nice, breakfast is simple but delicious, hotel is charming with all the amenities you expect.
I do not suggest eating at the Thai restaurant where the food lacked spice/flavor. There are other restaurants within 5-10 min walk which has better food--Susan pointed me to some.
Be sure to walk on the other side of the train tracks if you want to explore the city--there are some beautiful buildings there and smaller shops.More