Yes, if you are not a self-sufficient person and rely on taxis, public transport to get around rather than your bike, and you need a craftsperson to put up your shelves, or fix your repairs, you will find this expensive. Other countries pay less for these things so you can regard this as a con when living in Germany.
Sometimes, you may discover Germans lacking in humor, certain stuffiness which can be a pain. More annoyingly, they are not good at taking turn or sharing, so tend to 'bag' spaces or jump the queue. Taxes and community charges are high, that can be a shock. Worst for some is that Sunday is virtually a no-go day with everything shut except such things as a donor kebab stall. Outside the cities - tough. Plan ahead!