Be careful. I've seen lots of ads that try to convince me how valuable a certain product is; but the ad itself doesn't answer the "who, what, where, when, why, and how" that I need to know. So:
1: Make sure it's 100% clear what your product does (and doesn't) do.
2: Make sure that it's super-easy for me to find out high-level specifications. (For example, if you're selling a computer, it needs to be super-easy to find out what ports it has.)
Be careful. I've seen lots of ads that try to convince me how valuable a certain product is; but the ad itself doesn't answer the "who, what, where, when, why, and how" that I need to know. So:
1: Make sure it's 100% clear what your product does (and doesn't) do.
2: Make sure that it's super-easy for me to find out high-level specifications. (For example, if you're selling a computer, it needs to be super-easy to find out what ports it has.)