I had played this game along time ago before I joined here. I recently replayed it because of Part 2, as a refresher. here are my thoughts.
The daughter is lovely to look at, and really the highlight of this game. I did think she was far to promiscuous and forward with her dad for her age. While hot...her slutty behavior was also a bit jarring, especially early on when she was basically in heat and wanted her dad to fuck her friends too. Somehow this mitigates the extreme clothing choices she makes. Which is incredibly unrealistic for her age, but if she's going to be a little slutty in her behavior, it fits. Interestingly, this does not play the same way in the second part, but more on that in THAT thread.
The writing is solid, not great, but not bad at all and the somewhat simple story was fun to read. Then, at the end, there is a twist not expected. Clearly the writer wanted to tackle something more involved, and this was a very good and unexpected twist to what was seemingly going to be pretty typical fare for this genre. This is actually a brilliant choice for several reasons, but I'm sure it has a little to do with the success of other games that have deeper plots and stories to carry the incest backdrop.
Sara's age is never revealed nor does the author allow you to set it. I wish he had? I think most people would pinpoint it around 12-13.
Renders are solid, sex scenes are good. I think the dev's decision to wrap this one up and start a part 2 as a separate game is a smart move that a few other games have done. It keeps the game from being tediously long and "tired" as more and more characters need to be introduced to keep the "fun" happening over a period of years and countless updates.
I'll be reviewing the unfinished "Sara, Oh Daddy, Part 2" At some point in the next few days.