The official photos look pretty good. I like the typical GS proportions with long rear overhang. The larger wheels and lower stance just make the difference because I think with smaller wheels and more wheel gap it'd be much more ordinary - a 7/8ths LS. The interior really appeals to me though - it's somewhat jumbled but I like the details, colours, placements, and how luxuriously it all comes together. It's a clean and tasteful Japanese take on a German business sport luxury atmosphere (if that makes sense to anyone but me).
This is Lexus' 3rd or 4th go at finding success with GS. With this model at first glance they've gotten the formula right to me.