Advantages of buying property in Gretna, Nebraska may include:

1. Affordability - Compared to other areas in Nebraska, housing in Gretna may be relatively affordable.

2. Access to amenities - Gretna offers access to many amenities such as restaurants, parks, and shopping centers.

3. Good schools - Gretna is known for having excellent schools that provide quality education.

4. Growing community - Gretna is rapidly growing and offers opportunities for new businesses, which could lead to an increase in property value.

Disadvantages of buying property in Gretna, Nebraska may include:

1. Location - Although located near Omaha, Gretna is about a half-hour drive from the city, which may be inconvenient for some.

2. Severe weather - Like much of the Midwest, Gretna can experience severe weather conditions, such as tornadoes, which can cause damage to properties.

3. Limited job opportunities - Gretna is a small town, which may limit job opportunities, forcing residents to commute to nearby cities for work.

4. Potential for flooding - Some areas of Gretna may be prone to flooding, which can cause damage to properties.

Keep in mind that these advantages and disadvantages are general and may not specifically apply to every property in Gretna. It is important to research and evaluate specific properties and consider your personal preferences and needs before making a decision.