A very basic futon frame that ends up sturdy and comfortable, but lets the mattress slide a bit if used heavily in couch position.
The frame is solid untreated wood that is easily visible even if in couch position and pushed against a wall. We stained it with a dark stain before assembly and it looks very good.
Assembly is more difficult than expected. The back and seat hinge together by the back vertical slats being slightly  wider than the bottom verticals. That makes the horizontal slats in the back have 2 inch wider screw holes than the bottom slats. If you took the stickers off to paint or stain the frame, is easy not to notice there's a difference and mix up the two, which results in some frustration as you try to figure out why the holes for some slats aren't lining up with the verticals while others are, or why the entire bottom assembly doesn't fit with the back or legs.