Hi Kim,
I can only support what Andre and Nikolaos mentioned.
The countries that you listed don't change tax rates that often and even if they do, it is easy to update the tax rates.
Another advantage is that they are all - except Switzerland - in the EU and have similar kind of regulations.
For that reason, the setup and configuration in all EU countries is very similar.
What is currently not fully covered are triangular or chain-tax tax scenarios.
As an example, items are purchase in Poland, shipped to Germany, painted in Germany, shipped to France, welded in France and then send off to a customer in Spain.
If you have such kind of complex tax rules to comply with, you are right that the standard features are not able to handle them completely.
Yet, those trades are often so complex that you even need to consult a tax adviser how to record the tax correctly.
If you don't have such complex tax processes, I would suggest to go with the standard application.
Best regards,
Ludwig
