You might have already bought a home but in case you're still in the market looking to make a move, this is an excellent community of San Ramon. I have seen kids playing in the park all the time. You also see people walking on the tracks during anytime of the day. Generally, a very safe and desirable area to live with excellent schools.
I recommend that you take a drive through the neighborhood once in the morning, afternoon and evening Monday through Friday and then one day on the weekend. I also recommend that you knock on some of the homeowners doors and introduce yourself as someone who is looking to purchase a home in the neighborhood an would like to ask them a few questions about the area. This will enable you to get a good feel for the area and determine first hand if it is right for you and your family. I hope this helps. Good luck!