I’ve been using it this year, have had a solo, sky archer, sky 5900 in the past. It’s a super sized solo for sure, just with the big flat front pocket. The top is sewn like a built in lid almost. I like that it has the side pocket on one side and spotter pocket built in. Compresses to be quite small. I’d prefer to be able to attach a lid onto it, but the big front pocket kind of takes that away. For a multi-day non-expedition sized bag, should work quite well. I never used/needed all of the 5900 on 5 days trips.