Legend of the galactic heroes (LOGH) is a massive space drama that is being set in a small section of space. This anime is almost unmatched in any media, there is not many shows that have these many locations, characters, topics, side plots and intricately strategic battles and have all of them written not only well, but exceptionally.
It is a sprawling epic with many dynamic and interesting characters that have their own philosophy and thoughts on extremely complex topics, and they represent the many facets of these topics without presenting one inherently above the other and instead showing the natural progression of certain philosophies and belief and what they would lead to.
I won't mince words here, forget star ratings and all the 9.3213/10 or whatever ratings you see here. It isn't possible to convey thoughts on a topic/show/movie with a simple rating, what I can tell you is that you should do yourself a favor, if you have any interest in politically dense, philosophical, and detailed world then give this anime a shot, there is almost nothing like it.