I enjoy this title repeatedly. It is everything one would expect from a noir detective thriller yet elevated to something much more. There are tragic events but some rather satisfying endings. DA is far more than some fun for the sake of having a fuck romp. The story is rather intriguing with well developed characters. There are also some lighter moments and sexy good times throughout. The sex flows from the story and is not forced in like other AVN's. It is a natural part of the story.
So... is it fun? Well, that depends on your definition of fun.
It's not a carnival ride or non-stop party.
Is it well worth playing? Hell YES!!!
I enjoy it every time I play it!
There are three really good endings with the three main LI, Carli, Judy (and Christine together) and Mi-Do. As much as I love Judy and Carli, Mi-Do's ending is my favorite. But, I really like submissive women... There are also some not so good endings and other variations depending on MC's depravity. The walkthrough on the OP will help you with that or one of us here in forums can fill you in as you play and develop more specific questions. Long story shortened... I highly recommend DA and Philly's other title still in progress, City of Broken Dreamers. Philly Games are among the very best available. Certainly in my top five favorite AVN devs. The juice is definitely worth the squeeze!
Hope that helps. Adventure ever on friend, Phat