Mazda 3 Sport 1.6 Diesel – Experience?

Hello, I have to buy a new Mazda and thought about the Mazda 3 Sport 1.6 diesel (109 hp). I have never driven a diesel before and one hears or reads (also here in the forum) again and again negative, so that I am no longer sure if it would be the right decision. What I particularly like about this car, except the appearance, is the low consumption of 4.8 l. Are there people who drive such a car and can you give me about your experiences short (positive / negative) I would buy one from 2006 – 2007 Thanks already in advance 🙂