Does the job I'd expect. I think they were worth the "hefty" price for curtains. I have a window by my bed and I don't sleep well when light comes through at any capacity so naturally I figured I'd get some blackout curtains. Well I didn't really think "100% light blockage" was actually going to be achievable; boy was I wrong.
The lights outside my apartment at night met their match, the car headlights met their match, THE SUN EVEN MET IT'S MATCH.
Very high quality product.