I’m a long time San Marcos resident. My kids went all the way through school here and we’ve owned homes here since the early 1990s.
Discovery Hills is a great neighborhood – excellent place to buy. San Marcos schools are excellent also, including the one in Discovery Hills.
If I’m not mistaken, lpjohnso is a Discovery Hills resident with small kids. You might PM her and see if she’ll give you the latest scoop on the neighborhood.
If for some reason you decide to widen your scope to other areas in San Marcos (not that you need to), I did a quick review of various neighborhoods in this old 2011 thread (July 27, 9:41 PM post):
