Rinsky about the PlaySeat Challenge. I have had both. The expensive one with steel frame and pro seat. And now I have the PlaySeat Challenge. The PlaySeat Challenge to me sits much more comfortable. That is the reason why I wanted to say dont get fooled by its cheaper price. It is personal, so test it out, but to me its much better.
As regard to the steering wheel: it is correct that the PlaySeat Challenge is less stable on the steer. But two points for this:
1. That is only a problem for people without experience. If you start playing you are moving around your hands like an idiot. With experience your steering turning needs to get much more stable. Its like drifting: when you start you move your arms around ecerywhere, later on you will get the vibe and controle your arms.
2. I have mounted my TH8 shifter on the PlaySeat Challenge myself, because there is no place for it. If you can do this yourself as well the heavier weight of the steal bar is keeping the wheel to its place.
So if possible test it out. I am sure you can find a local store ? See this clip to see how easy and quick you can fold it. I can do it even quicker myself than on the video:
And the PlaySeat stables itself balanced when its folded: