Love the panels, but one of the four panels did have spots throughout it.  It looked like the spots were actually in the dye lot or woven into the fabric and it wasn't anything I could try to get out.  I had my husband hang them without telling him about the spots to see if he could notice and he didn't mention anything about them.  I'm still going to talk to customer service and see if they can just replace the one panel.  He may not realize the spots are there, but I know they're there and I'm afraid it will just bug me.  Even with the flawed panel I still think the panels are great quality and five star worthy.