Bests & Worsts Reviews from Amazon

Ordered this on Jan 6th 2017, probably got it on jan 9th or so and today May 25th 2017 it broke. The end of the metal bar that keeps the ball in place broke off. Holding the broken off threaded piece in my hand - this feels like the cheapest quality steel possible. My wife asked if it was really metal or some other pressure formed solid coated to look like steel. I have handled a lot of threaded bolts and nuts and this is the lightest "chuck" of a bolt I have ever seen. I have only ever sat on the chair. I have never tried to do any of the exercises that use the chair that are included in the instructions. The ball is properly inflated. While I will attempt to get a replacement part - I have no idea if this will be possible and if so is this a part that is going to need to be replaced every 5 months. Assuming I cannot get a replacement part for free, this will have cost more than $10 a month to use for only about 10 hours a week. Before it broke, I liked it ok, I was using it as a desk chair. Not a great desk chair but better than I though it might be. Perhaps if they used real "old fashioned" steel in the metal bar it would last longer than 5 months. This ends up being an expensive way to get an exercise ball, because it won't work as a chair for long. Yesterday I received the replacement metal bar (yes, it took essentially 3 months). The new bar does seem to be made of steel, it is substantially heavier and hopefully will actually last. The packing list shows 3 items shipped, but all I got was the metal bar - no nuts to hold it on. Packing slip Lists: 95-1198 Kit Comp: Circular Metal Piece BB Chair 1 ordered 1 shipped 95-1198BOLT Kit Comp: Circular Metal Piece Security Bo 2 ordered 2 shipped I went to the hardware store and got the necessary nuts to hold the bar on. But it does seem a little strange that a company that initially sent out a product that based upon all of the reviews of the metal bars breaking, knew was defective, while replacing the defective part would not send the nuts necessary to hold the bar on. They seem to be trying and not to have their act together. I did raise my review to 3 stars (from 2), but I would not see Gaiam on a product and purchase it thinking the quality was any good. Updated. 11/9/17 Tonight the ball started to deflate. Sitting on the chair at my desk I heard a hissing noise. At first I thought it was coming from the computer, no the hiss got louder and I figured out the ball was deflating. Nothing punctured the ball - it is just poor quality. Lowering review to 1 star. Gaiam quality control is very poor if the chair I got is at all representative.