There are several reasons why someone might choose a fiberglass pool over other types of pools, here are 6 of the most popular:

1. Speed of Installation: Fiberglass pools are pre-formed, which means they can be installed much faster than other types of pools. If the fiberglass pool you want to install is available, you will likely experience less wait time for your pool to be built, and less disruption to your property during the installation process.

2. Low Maintenance: Fiberglass pools are smooth, non-porous, and resistant to algae, bacteria, and stains. Their surface means that, in general, fiberglass pools require less maintenance than other types of pools.

3. Cost-effective: Fiberglass pools are often less expensive to purchase and install than other types of pools, making them a good option for those on a budget.

4. Variety of Designs: Fiberglass pools come in a variety of pre-formed shapes and sizes, and some manufacturers offer a wide range of surface designs to choose from.

5. Durable: Fiberglass pools are made of a molded fiberglass shell which can be very durable, and resistant to cracking, chipping, and fading.

6. Energy Efficient: Fiberglass pool can be built with features like variable speed pumps, LED lights, and solar heating systems which can make the pool more energy efficient.

While fiberglass pools are limited in terms of customization options and may not be as durable as gunite pools over time; they are a great choice for those looking for a cost-effective, low-maintenance option that can be installed quickly.