I use it. It smells great when applying it by PC. It smells just like a vanilla milkshake. Yummy... The reflection is really amazing too. It looked really great on white.
I took this picture the first time I washed it after my LS application. The reflection of the hose in the side of the car was the first thing I noticed. In direct sunlight it is really hard to get white to reflect. It usually just gets brighter than hell. I was pretty impressed.
I'd rate its duribility a little better than regular Souveran. I'd give it 6 to 8 weeks before needing to put on another one. Maybe a little longer if you live in a mild climate and shorter if you live in a really hot one.
I didn't have any problems layering it. I don't believe that it has any cleaners in it.
It is about the same as Souveran. The only thing that I would say is different is that Paste Souveran glows more and Liquid Souveran reflects more. They are really similar though.
It applies like butter and comes off real easily. It is hard to tell the durability of it, because it sheets the water instead of beading. It really makes a car reflective while giving it that deep wet look.