You have an amazing soundtrack with classical additions such as music by Tomaso Albinoni and Gustav Mahler. The OST composed by Michiru Oshima is dramatic, emotional and colorful. The characters are fun and the main couple is entertaining in their interactions.
There are some themes present which can be considered problematic in the present time but considering some misogynistic and violent animes released in the past few years (looking at 2021 in particular, I won't give names here) this seems harmless and unlikely to influence in a negative way. I found a lot of scenes were suggestive.
There is good character development and the main protagonist is likable with a strong personality.
The romance is good and there is plenty of it. Lots of funny scenes in between the extremely dramatic events which could easily rival a soap opera.
The animation is a bit faded but it grows on you because it's nice and fluid for the most part. If you enjoy retro animes you're in for a treat.
