The layout sucks.
The typography hurts the eyes.
The number of words included is not humane.
The amount of info is not logical.
Naturally, this is why it works.
What?
The ad is right on a building in Dora roundabout - the amount of traffic jam is incredible on any regular day. People get to pause (forcibly!) to read the ad. And despite the fact that the offers included are too many (price discount this and get one free that) one cannot but be tempted to park next to
KFC down the road (the ad says the location twice!) and buy something. A good ad does not mean you go to Cannes with it, it simply means you notice it.