One personal anecdote. It did not do that great for Norway/Norwegian, I ended up switching back to google when trying to find some stuff in stores.
For recipes and stuff it was fine.
It works fine in French for me. I really like that I can have international search by default, and specify a country when needed using a bang like !fr.
Working fine for me with Danish as my primary language. But I think that I mostly search for English content, so unsure how your experience will be.
But could you not just pay for a month and try it? I don’t think their plans bind you for a longer than a month.