I think it's a good product.
● Mounting parts: Floor crossbar
Installed at about 6000km, installed by DIY.It was easy.
It is necessary to cut a part of the interior (scissors are OK), but it is not so noticeable.
After mounting, when the steering wheel was turned due to a lane change, etc., the movement became clearer than when it was not mounted.
Immediately after mounting, there was a slight squeak noise due to climbing over steps, but after a while it disappeared.
I think it's a good product.