The things that I found enjoyable were the characters and the story. Yuuki Shinjuurou is a solid protagonist, with the right foundations that makes a good character. He's both astute and deeply flawed, and can acknowledge that. His supporting cast compliments the story well, albeit at times his sidekick Inga's supernatural affinity feels out of place. The story remains mostly consistent, and doesn't leave anything too wide open at the end.
UN-GO doesn't do everything well, however. The story abruptly gets weird with larger-than-life characters that assumes control of the story. The animation and music are also pretty forgettable, but not particularly terrible. My only major complaint is that it felt too short.
All in all, UN-GO is a good anime and is worth taking a look at, especially if you like mysteries or shows with witty characters. It doesn't set the tone or redefine what makes a great mystery, but it's certainly enjoyable. And at the end when Shinjuurou was given the opportunity to forgo his life as a lone wolf, he decided to move on and stay true to his character.
