Friend's Park Avenue has also nice seats, almost like stolen from living room, but they're really not that comfortable in a long drive or even shorter drive.
Best seat is solid, maybe even hard one... kinda like the aftermarket Recaro I had in my old BMW.
First it felt very uncomfortable, it was hard and bit cramped but after 4h drive you didn't want to get out from it

If anyone is having a bad back and needs to drive much that's something he needs to get. Not the cheapest one but worth of the cost and can be moved to next car.
btw Recaro builds also original seats at least for some Mercedes-Benz cars and I wouldn't be surprised if the seats of Passat are also from their productionline.