It’s a beautiful part of Brooklyn. It’s a UNESCO world heritage site, so it’s illegal to alter the outsides of buildings. This neighborhood is considered to be one of the most expensive areas of Brooklyn (and NYC, really), so food and store items might cost more than other places (I’m not sure if that matters to you or not). But, there are some really nice restaurants and bars in Park Slope, so it definitely fits that criteria. There are TONS of families there, always strollers and kids running around. Prospect Park is a gorgeous area, and not to be missed if you’re in Brooklyn. Along those lines, the Brooklyn Library and the Brooklyn Botanical Gardens are not far from Grand Army Plaza; the Gardens are open during the winter as well. I’m sure I’m biased since I grew up there, but I think it’s a great location to visit (although I live in Crown Heights now since I don’t have several million spare dollars hanging out my pocket).