Advice on buying a rice cooker

Next Thursday, Lidl in Italy will offer a rice cooker for 19,98 € and I'm considering buying it. There's not much information online, so I'll have to decide whether to buy it or not when I'm in the shop. I'm mostly interested in buying it if it has a timer, so that I can set it up in advance, however for that price I do not expect it to have many fancy functions. What should I look for in a rice cooker before buying it?