We were in the Singer Cabin in late april and the experience was really nice. The Cabin is confortable and beautiful, with lot of details. The surroundings are wonderful, in front of the Cabin there is a lake and even if it is in the middle of the nature, it is between 2 national parks (Hossa and Oulanka). Also, It is 20 min from Rukka, where there is snowmobile safarys, husky safarys, Sky, etc.
The owners were very nice and understable with us and tried to help us and adapt in every moment.
Moreover, the quality-price relation is just so good!
If I ever came back to Finland, I'd love to repeat in this place.