I have been using it for 6 months, until the norms, nothing broke, the only thing is the clicks of the swing mechanism are strained and the bolt plugs fly off.
Pros
In general, not bad, at first soft, after 3-4 months the upholstery is crushed.
Cons
After 4 months of use, it began to click, when you roll over to the side or when you get up. Topgan mechanism installed cheap. Will have to change to a stronger one. The seat is not very comfortable, there is a hole in the middle, there are protrusions along the edges that press, if you sit for a long time, your hips start to hurt . It would be better if they made a flat seat.