Covina, California is a great city to own a home in, but there are certainly factors to consider before making the decision to purchase. Here are some advantages and disadvantages to consider:

Advantages:
1. Strong real estate market: Covina is an up-and-coming city with a strong real estate market. Property values have been increasing steadily in recent years, so purchasing a home in Covina could be a wise investment.
2. Good location: Covina is located close to the major cities of Los Angeles and San Bernardino, making it an ideal location for commuters who work in those areas.
3. Good education system: The public schools in Covina are highly rated, making it a great place to raise a family.
4. Pleasant climate: Covina has a warm, Mediterranean climate with mild winters and hot summers.

Disadvantages:
1. High cost of living: Covina is an expensive city to live in, so purchasing a home there may be out of reach for some homebuyers.
2. Traffic congestion: The city is located near several major freeways, which can lead to heavy traffic during peak commute hours.
3. Earthquake risk: California is at a higher risk for earthquakes, and though the risk is not specifically higher for Covina compared to other nearby cities, it is nevertheless a factor to consider.
4. Air pollution: Due to its location in the Los Angeles County, Covina, like other cities in the region, can experience high levels of air pollution at times, impacting the air quality in the area.

Overall, while Covina offers many advantages as a place to own a home, it is important to carefully weigh these factors in your decision-making process.