Honestly? The best in the series. Sure, there were fewer girls, but TheCombatWombat's new animations are pretty top-notch. Additionally, the story was a lot of fun, and the mystery of figuring out the mastermind was satisfying to solve. Was it difficult? No. But, it doesn't need to be when it's just plain old detective fun.
I loved Nero, the protagonist. I'm certainly biased in that regard, due to my personal preferences, but she's honestly great to play as in Breedtown's world. Reed can be fun, but Nero brings in a voice of emotion and realism that you just can't live without. 

My only complaints with the game are A: the lack of repeatable impregnations, for bigger bellies (technically happens with secret discoveries, but doesn't quite lean into it as heavily as BT 2) and B: A slightly disappointing breeding sequence with the final girl. To be fair on that last point, though, it felt far less irritating than two, mostly since it fits perfectly in the context of the character. Most of the burn comes from the usual horny. Still, after the first game's brilliant massive ending, you really do wish for more during the end sequences. Reed even teased it!

Overall, damn great game. Can't recommend it more if you've got a thing for breeding. Fairly short and straightforward, but one of, if not the highest quality game on the market. Favorite in the series.