Sponge gutter guards are effective at blocking larger debris, such as leaves and twigs, but they can become clogged with smaller particles over time. They are easy to install but may require regular cleaning to prevent clogging and maintain water flow in areas with heavy debris.

Sponge gutter guards are a cost-effective solution for blocking large debris. However, they may need frequent maintenance to remove smaller debris like roof grit or dirt, which can accumulate and cause clogs.