Dec 23, 2012 - 6:02 AM
Hi Wannagoswiss, and welcome to the website,
1. Most people would say that the leg St. Moritz - Andermatt is the highlight.
2. Yes it is, if the train arrives on time (which is usually the case, but there are no guarantees). You may be interested in the new direct train
from Interlaken to Paris.
3. There is space under or behind, and above the seats, but it depends on the size of your luggage whether that's sufficient. Larger items can be stored in the designated areas elsewhere in the carriage.
Enjoy your stay!