This source material is perfect for dungeon masters who want to create realistic whore houses and brothels. The first chapter offers character ideas for Pcs and the equipment chapter has a few new items in it including alchemical substances. The feats described are useful and important if a dm is utilizing the new nookie skill. There is a hilarious section about "getting with" the different monster types.
A major portion of the book is as stated earlier about running a Brothel with realistic rules.
If you intend to use the information then this is an excellent buy for a DM.
For players, the character options are neat and the prestige classes are something new to try out.
This is a worthy addition to a gaming library if the group doesn't get offended easily. If your group does get offended, forget about it!
[4 of 5 Stars!]