Pros
- Armchair scholar of geometry and kinematics who achieved success. If you tweak the design just a little bit, you can make it last significantly longer. It lasted five years for me, despite the fact that I weigh 110 kilograms. Not the longest time I've ever experienced in my life.
Cons
- At first, the loud clicks that occurred while landing on a chair were bothersome. It was perfectly placed on the brand new chair. After that, they started to show up whenever I shifted my position in the chair. What it is that clicks, and we were unable to figure out. Somewhere in the depths of the base, the sounds are quite loud. It was a nuisance, particularly when everyone else was sleeping and you wanted to change positions. The shock-absorbing pneumocartridge failed sometime in the range of three to four years. The chair started to go back down to the lower position on its own, and eventually it stopped moving upwards altogether. The most unfortunate part, though, is that the rear snapped off in the end! This is a defect in the design of the product. There is insufficient height on the L-shaped steel plate that serves as the support for the plywood back. This is the most important and self-evident justification. The chair may have been used for a longer period of time if it were just 100 millimeters higher. It's possible that the plywood used to make the back has lost its ability to support weight and been deformed as a result. The chair is not entirely upholstered in leather. The leatherette on the lower cushion's sides dried out, split, and eventually fell away. In addition to that, the back of the back is crafted from leatherette. You can tell that my walls are harsh because if you spin and then touch them, you will have white abrasions on your back.
