I suppose I could have elaborated.
I used the product on my Bonneville for years and my results were always amazing. Obviously opinions will vary but for an amateur do-it-yourselfer Zaino is easy to use, leaves an incredible, long lasting shine and it holds up to the elements. After multiple applications the results are incredible. In the early months after purchasing my Bonneville I tried several products and nothing came close to Zaino so I stuck with it and when someone asks, "What should I use?", that's what I recommend.
Okay, that's a very fair assessment and I understand your recommendation. Here's what I would take into consideration.
The OP is not happy with the shine that he has obtained thus far. The products that he has been using to date although not of the caliber or yeild the protection level of Zaino, perform is a similar manner. You can only get so much from a product that you simply wipe on a car. There comes a point when you must break out some tools that are capable of getting more pop from your paint. That's where a machine and compounds/polishes com into play.
Most of the paint products that Zaino manufactures are what people in the detailing business call glazes. A glaze is a product used to mask paint damage. By applying enough Zaino, you can mask a lot the damage in paint as long as the damage is not severe. The more you mask, the less light will scatter when hitting the paint. The less light scatter, the more intense the shine will appear. That's why the more Zaino you apply, the better your paint will look. However, a glaze will never be able to produce the shine that you get from polishing paint.
The act of polishing generates heat. The generation of heat is what helps remove the outermost layer of anything. This layer removal is what makes objects shine like new. That why you polish brass, glass, aluminum, jewelry, leather and so on. When you remove that outermost layer, you reveal the unblemished layer beneath it. The same approach works for car paint.
People who I advise to use a product like Zaino are those with cars that have the original paint on them, which has become thin over many years. Something like a classic 1960 Cadillac. You don't want to go polishing on that paint if you can clearly see blotches where the paint is getting thin. Zaino is an ideal product for a car like that and is exactly what I would recommend Zaino for. Zaino is also ideal for someone who doesn't want to go through all the work of using polishes and a buffer. It's a lot quicker to use and not as expensive as the alternative. However, you will never see the amount of "pop" that you would get using a true polish and a machine. By the way, Zaino does make two polishes. Z-AIO, a all-in-one product and Z PC Fusion, a compound like product that is similar to Meguiar's M101, just not as potent.
So it depends on just how much pop the OP wants and how much work he is willing to do for it. By comparison, here's my car on Zaino:
It's shiny, but no where near as intense as it is after polishing. It doesn't matter what polish I used, just that it was polished correctly.