I was able to pick up Souveran when a price war broke out. If you have money burning a hole in your pocket go for it. It is a great product.
Is durability a question, then maybe try Blitz first. Souveran is trim friendly, Blitz will leave a residue if not careful.
I have Paste glaze as well, I almost prefer that to Souveran, bit cheaper as well.
Is the car inside our out, do you want to put it on often or not?
Some questions to consider.