We booked a 4 night trip to see the Northern Lights in Karesuvanto, Finland, through Transun. The tour operator were fairly good in advance of the trip, but 3 days before travelling, my daughter came down with flu.
I called Transun to see what my options were and they offered me a an alternative departure date, from a different airport. They were able to shift the whole thing over, for a minimal admin fee, and we had a great holiday just a few days later.
Other reviewers have mentioned how much fun it is on Husky Rides and Snowmobiles, so this review is to sing the praises of Transun for sorting things out when they got difficult.More