In conclusion, they are about equal overall for me. I was able to sleep with them that night. I used 6 for my 16x20 that I hung with them and so far havent had any issues. Super comfortable and look fantastic, could not be happier with this purchase! Nice arch support for a flip flop. Again, this piece isnt finished well. This is to save battery but the notification of it turning on/off can be pretty annoying at times - I find that they can start to fall off of your head easily forcing you to catch them as it is kind of a loose fit, even if you have it tight around your head. This rack is sturdy and very easy to assemble with the included hex wrench. I still may get another and just add the longer bars on the sides to increase the height of tiers but I would only have half of a shelf. Unsure? thinking of checking many a forum to find the right answer? Just buy this.