Hello Jay586, my wife and I have a 2016 542GT and we too love it. We had an older 530 and we did like it but having to climb over one another at night became a bit of a chore. I know that the 542 isn't the choice for the purists but we love the fixed long bed, OK the storage is compromised a bit and the seating in the front is slightly narrower but there's only us two plus dog and it's great for 'flopping' out and just reading during the day.
Ours was only just secondhand from Automotive Leisure when we bought it and we managed to get the triangular infill bed piece FOC but found we don't use it as the V cut out makes getting in and out of bed easier. We sleep with our head at the rear window. I also bought Spring Duvaley mattresses for it, Ummmmmm lovely.
Happy Hunting.