Fiat Punto 55 S – pay attention.

Hi guys, since my Opel Astra F is due after 1 1/2 years and now 170tkm the TÜV is due and the repair costs are too expensive for me (about 110€, I had paid at that time only 800€) I want to get a Punto now. I wanted to look at this one at the weekend. What should I pay special attention to? What are typical defects with the used Puntos? Are they also as extremely rusty as the Opel? Greeting Maxi