successful compromise

We are dealing with a folding solution and because it must be clear that sacrificing stability are to be expected!
Those looking for a realistic simulation of a vehicle cockpits, should better look for another model.
Important for me was that
1) my Thrustmaster T500 RS (steering wheel and pedals) fits
2) the part as simple in design and can be dismantled
3) it does not take too much storage space to complete
4) the hut not too shaky comes
All of the above expectations were met 100%.
to point 4: you have to have no fear that the partial collapse of the chair itself is safe and stable enough (at 186cm and 90kg). Only the steering wheel is just not as rock solid as in a car!

1 point deduction's for 2 small things:
The feet of the chair are not suitable for parquet, they should paste or inferior with felt or carpet.
The pedals will be strapped by means of velcro strap + on the chair porch. This could have been a better solution (eg by screwing), because the pedals easily slip relatively sideways. This is less of a problem when driving (in the longitudinal direction, the pedals are firmly fixed), but rather when you move the chair.

My conclusion: The seat meets my expectations and meets my needs. Had I thoroughbred racer and would not make certain demands on comfort in the living room my better half, I probably would have bought something else. But if we have found a good compromise and can continue to live together in peace ;-)