Megane or Astra kombi?

Hello! I asked some time ago in the Opel forum what would be the better choice for my parents. They are looking for a new one. Currently they drive the older Megane as a station wagon, which has meanwhile 120,000 on the clock and so really satisfied they are not. The vehicle already makes a lot of trouble and was never completely problem-free. In the acquaintance there is a renault dealer, therefore they think to buy a Renault again. Has the Zuver Since then, my parents have been driving a car for six to seven years. Therefore, the long-term quality that is lacking in their present age is particularly important. The predecessor Opel Astra F Bj. 92 was better., and in the long term cheaper. Few problems up to 140,000 km. Only the rusted, what the Megane does not do. So, I expect honest advice and experiences. No statements like: “Opel is shit, dear Renault” E The facts count! Thanks to you in advance!