Collected my new S90 this week. Unfortunately, the dealer ordered the wrong trim! They have been very good about it though, and luckily it can be sorted out. They have ordered the correct "Linear Walnut" trims and will fit them in the next week or so.
I really love the car though, and anyone looking for a big saloon should certainly consider and sit in one. Looks great, excellent ride quality, great tech and the cabin is unlike any other, very clean, crisp and "airy".
Is it as good as the new 520d? No, but that is not to say I wish I chose a 520d (nor does it mean the s90 is a bad car), as I wanted something a little different, a little more subtle, and I fell in love with the interior as soon as I sat in one.