What a masterpiece of a station!
I love its overall structure so much - the fact that you can look out through certain windows and see a little bit of the sky BUT MOSTLY other parts of the station is something I've rarely seen and highly appreciate. These views give a fine balance of a sense of openness and protection - on one hand, being able to see local planets, stars and the nebular background remedies the feeling of being locked inside a shell of steel; on the other hand, seeing different parts of the station physically shielding you from potential asteroid impacts or pirate attacks really makes this thing feel like a secure fortress. I was searching for this design principle for a long time without realizing it :D
The turrets add to the sense of security as well. There's also a liveliness to it thanks to the many nice little spacecraft parked all around the station.
And the interior is sooo nice. It mixes elements of interior design from the middle ages, the Victorian era and future times. I especially like the chessboard tiling on the floors, and all those mighty copper or gold statues. What I think could use improvement in the interior is the overall layout (where areas of certain purposes are in relation to others), and the connectivity of compartments (it gets a little labyrinth-like at times; not having more than a single possible route connecting two areas could help in exploration, because that way it would be harder to get spatially confused, or overwhelmed by all the different possible shifts in one's path).
All in all, the Eagle's Nest is a splendid project, wish to see more like this! :)