We visited Switzerland in July as a family of 4, with two children ages 17 and 12.
Parking- There is no parking on site, but a very close garage about 2 minutes walk away. You will need to roll your luggage up a small hill from the garage so be prepared for that. The hotel is very well located to the town, and getting around via foot from the hotel is very easy!
Check-in- Upon reaching the hotel, there is a small flight of stairs you must go up to enter the front door. Right inside is a restaurant that is Tex-Mex themed (being from Texas, this was a cute surprise) where you will check in and get your key to your room. Our room was outfitted with a queen sized bed and two roller beds for the kids. The windows opened for a nice breeze to keep the room cool, and they even had a fan set up to keep the air flowing. The room itself was clean and comfortable. An amazing bonus was the complementary breakfast every morning! The restaurant had a table waiting for us every day, and the food was perfect for us to get our day started. It's not a full hot breakfast, but a nice mix of meats & cheese, pastries, cold items, fruits, and cereals.
Extra- We visited Thun in the middle of our 18 day European Trip, and had heard that there was a great laundry service there right around the block from the hotel. We dropped off our dirty clothes and picked them up the next day folded and sorted. They were fast and it wasn't expensive at all!