No you do not want to live in Tiffany Woods. it looks nice but the area has a lot of rowdy young people that do not have respect for others. There has been gun shooting and fights in that community. Check with Lawrenceville township police to verify.
As already stated, the local police department is the best source of information, regarding any safety issues--if you are not too familiar with the area, do drive around the neighborhood more than once and at different times of day, speak to locals/neighbors if the opportunity arises and then make your determination.
Safety and crime issues of a specific neighborhood are often best addressed by the local police department or the county sherriff's department. They have acess to the most current and accurate information and are generally willing to be helpful.