"The Green Dragon" describes that staple of fantasy gaming, a good quality inn with a mixed clientele. The inn is moderately sized, although not exactly large, and has a number of amenities in addition to the large tavern room. If you're looking for an inn to add to a city, or possibly even a more out-of-the-way location, this is a supplement, as with everything I've seen so far in the "City Streets" series, that's well worth the price.
The maps are hand-drawn, and not quite up the standard of those in the previous two entries in the series, but they're perfectly good for their intended purpose, showing all the key locations and giving a clear idea of scale. For some reason, each floor plan is repeated twice in the book, but even ignoring the duplicated bits, you have nine pages of content here, which is slightly more than in the earlier entries in the series.
Unlike those previous two, the plot hooks here aren't in the inn itself, or its history, but in the mixed bag of characters who call it home. They are well described, although statless, as this series is system neutral. For most, writing up stats shouldn't be hard in any system, but it's their backgrounds and personalities that make the place interesting. And, of course, that provide for the potential plots. Some are implicit simply in who they are, but a selection of plot ideas is provided for those who want something more explicit.
More than just a regular inn, this one provides plenty of opportunity for your PCs to get involved in the lives of its inhabitants, and get a short adventure or two out of it.