I think it benefitted me, even if I didn't learn much.
It let me look a bit deeper into Japanese culture. The politeness is baked deeply into the language and the sheer amount of Kanji told me that a Japanese person has to constantly be on track to not forget even the most important ones.
On the other hand Japanese seemed antiquated. 3 sets of symbols and one of them has thousands of items. The gramma seems kina straight forward, but the sentences simply get too long fast.
I speak German and English, which aren't drastically different. But while learning Japanese I found out how different languages really can be.
English is a bit compacter than German, no "der/die/das", just "the". Most words are not capitalized, no compound words, etc. but English is A LOT compacter than Japanese.