These curtains are beautiful! The liner definitely lets light in- it is "room darkening" but not blackout. The fabric is great quality, and the panels are all hemmed to the same length which is important when purchasing and installing 10 of them in the same room! My only complaint is that a couple of the panels have random blue threads on the side stitching. It's not super noticeable to anyone else but I notice it. But overall they are beautiful and I would purchase again!