Please advise if it will be convenient to bring up a few pieces of luggage onto the cogwheel train?
We will be visiting Mt. Rigi and departing for Milan thereafter.
You can take along luggage, but if you don't need it up there it's much more convenient to travel without it. That allows you to do some walking around too. If you start and end the trip in Arth-Goldau, you can keep your luggage in the lockers at the rail station, or in the left luggage office (weekdays from 7.30 AM to 6 PM).
More information can be found on myswissalps.com/train/practical/luggage and myswissalps.com/rigi.
Thanks for the reply, it is very helpful :)