Here are some potential pros and cons of buying property in Ontario, California:

Pros:
- Growing economy: Ontario is a thriving city with a strong economy, diverse job market and easy access to major transportation hubs.
- Affordable housing: Compared to other cities in Southern California, Ontario offers relatively affordable housing options.
- Cultural amenities: The city offers plenty of cultural amenities, like museums, theaters, and art galleries.
- Outdoor recreation: Ontario is located in close proximity to several mountain ranges, lakes, and parks that provide opportunities for hiking, camping, fishing, and other outdoor activities.

Cons:
- Traffic congestion: Like many cities in California, Ontario can experience heavy traffic congestion, especially during the rush hour and peak travel times.
- Air pollution: The city is situated in the smog-prone Inland Empire region, which can cause air quality issues.
- High property tax: California has some of the highest property tax rates in the country, so property owners in Ontario will likely have to pay a higher property tax bill.
- Risk of natural disasters: Ontario is located in a seismically active region and is at risk of earthquakes. Additionally, the area can experience wildfires and flooding.

It's important to note that these are just some potential factors to consider and you should do your own research or consult with a local real estate agent to determine if Ontario is right for you.