The building, of course, is so-so.. there is a lack of cleanliness, order and punctuality of Russian carriers (and I am writing about Russian ones without irony, now the train and bus schedules in our country are much better than in Germany). The buses here are clean, serviceable, and run at regular intervals. It is quite possible to use it as a mode of transport in Nha Trang and the surrounding area, I checked.
Quite a noisy place, there is a pedestrian crossing nearby, where almost everyone wants to knock you down! Personally, I've been getting used to it for more than a month. Near the station, you can always buy a local "Shawarma" Banh Mi, this is a short loaf, usually with a very spicy filling, the station itself is clean only in the morning, in the late afternoon there are bags everywhere, and it smells of fish.