These are great when they don’t break. They truly don’t cause condensation. Which is a huge life saver for my house. However they do break pretty easy. In the dishwasher, setting them down with an accidental tap can lead to a glass nightmare. Some were broken in shipping but Wayfair corrected that immediately. I’d buy again simply to chose having broken glass occasionally over rings on my tables, counter and bars. But not a perfect solution yet.