Hi Mitzi,
We do not live in Mission Hills, we are in Hacienda South. However, this past summer we on several occasions visited the Mission Hill pool. I can attest to some very friendly neighbors who we met at the pool. You are in a nice location, (you probably know this) very central to 2 of the 3 Town Squares. If there are no responses on this forum, once you arrive and spend a few days poolside, you will see how friendly the people are at Mission Hills. I do think many are seasonal, so the pool will not be crowded during the hot days of summer.
