I use it and it's worth the money and time. Works well if you do it right and don't try to cut corners or rush the job. The shine really lasts, too.
I did a Zaino wax job on my wife's Mazda 626 a year ago and it still gleams - with no garage (we live in the snowy northeast) and the car is driven 7 days per week, too.
Recommended.
Check out the Zaino website for more information:
http://www.zainobros.com/