Zaino lost their edge on the market. That stuff is a PITA to apply and doesn't give very good gloss.
Check out Optimum's line of products.
www.optimumcarcare.com
Their Opti-Seal is a spray on wipe off sealant that works extremely well and applies more easily than any other product on the market. It is on my X5 right now and I love it.
Follow it up with their spray wax for shine and more protection and you're good to go.