Hydraulic building hoists offer several advantages, including high lifting capacity, smooth and controlled lifting, and lower maintenance costs due to fewer moving parts. They are also energy-efficient and can be easily integrated into existing systems. However, they have some disadvantages. For instance, they can be more expensive to purchase initially compared to other hoist types. Additionally, they may require more space for installation and can be sensitive to extreme temperatures, which might affect performance. Lastly, hydraulic systems can be prone to leaks and require regular fluid checks and maintenance to prevent system failure.