Best way to gauge commuting traffic is to go to Google maps for directions. enter your "from" address and your "to" location and it'll give you the estimated travel time. DOUBLE that and you'll be there on time, if not a little early.
Before purchasing and/or renting, always do a search for the sex offenders in the area by checking out the CA Attorney General's website at
California Megan's Law - California Department of Justice - Office of the Attorney General . You'll be surprised at how many are in Simi Valley (in both 93063 and 93065 zip codes).
Stay safe.