That yellow kitchen is wonderful! Very stylish, I love the tiles too. The Neff appliances were expensive back then (70's). The fridge is a bit small, often the choice was a 250 liters model. I can't really determine it, but I guess the oven is still gas? Soon after the built under cookers the built in became in fashion. Around that time the combination of gas hob and electric oven appeared on the market, which was soon the most popular combination soon in continental Europe.
BTW, this kitchen looks very well kept!