The web site nabewise.com provides the following " The neighborhood Borough Park, shortened to Boro Park by its residents, is a large and rapidly growing community in southern Brooklyn. Borough Park life can be rather insular, with a citizens' security force which works in cooperation with the NYPD. Property is constantly being expanded in all directions to deal with a very high birth rate among community members." and if you check the following link there are some neighborhood reviews; http://nabewise.com/nyc/borough-park/reviews
Another web site http://www.brooklynonline.com/bol/neighborhoods/bp/ provides this description; "One of the fastest growing and most vibrant neighborhoods in Brooklyn, it is home to the worlds largest Jewish community. A center of Jewish Culture in the United States, today's Boro Park, like many other neighborhoods in previous generations, is bound to become legendary in American Literature and Culture. It has that heady and unique cocktail of vibrancy, Ethnic Identity, unique personality, and historical importance, to assure it's place along with other world famous Brooklyn Backdrops."
Neither agent nor Realtor should really answer this question. You are free to Google the area; there are many links, government and city sites that show you the crime rates, registered sex offenders, and other things that may be of an interest to you and your family.
Best of luck.
"A good place to live" is really an individual judgement based upon what you are looking for. I would suggest you research schools, crime stats with the police dept, and visit the area to see if it offers the kind of things you are looking for in a neighborhood.
Any good place to live reflects one's wants, needs, lifestyle, etc.; therefore if unfamiliar with the area, take the time and visit more than once, look at whatever is important to you, then make a determination based on your personal preferences....