When putting together the chairs, it took forever.  First chair went together okay.  Second chair took a long time.  I had it together and then saw it was off balance. So I took the second chair and partially unscrewed each screw trying to adjust it like the video said.  The screws then stripped and I barely got it put back together.  Still wobbly once I got the screws tightened again like the instructions said.  I’m scared to let anyone sit on it.