Effective Ads

I've been thinking recently about which ads are effective in
getting me interested in a product or service. Finding out which ads are effective can tell us a bit about ourselves. For instance, I've
realized, there are two types of ads that are effective with me.


Firstly are ads that go for all out beauty and design in the ad and/or
product. A perfect example is this Mercedes Benz ad.

Secondly is if it goes into detail with why the product works. Though
this is not an ad per say it did get me to actually purchase the
product.

These type of ads are effective in bringing me to that “interest” or
“desire” phase about the product. I do enjoy other types of ads, but
the interest usually stays with the ad. I think these are effective because
of my interest in design as well as the curious analyzer in me.

What type of ads actually make you want the product/service?