I have these on a T6 and you lose the height adjust function in selecting this option (not sure if it’s the same on the T6.1). You definitely can’t spin round at the press of a button, you need to move the seat forward (but not too far), put the seat back forward (but not too far), put the armrests down or up then swivel, simple
but I think if you want a swivel function it’s best to get the factory fit. We often swivel the single passenger seat when parked up but save the drivers for mostly only when camping