Escondido is a dump. Avoid it if you can. Its also a commuters hell and no amount of widening the freeway will fix that. They’ll just build more houses and you’ll be right back where you started.
As suggested hidden meadows is a nicer part of Escondido, but there really aren’t many jobs there so you’ll have a commute. It will be made longer by the fact that there is only one way in and out of there. If you are going to live that far away from work, look at one of the more rural areas, ie Fallbrook or Bonsall. That is unless you like living nut to but to your neighbor but still having a 20 minute drive to a grocery store.
I’d even recommend Valley Center, but the casinos have ruined it completely.