My current daytime moisturizers have SPF 35 from Neutrogena. I love them! However, it can feel heavy, especially under makeup. Super Fluid makes me feel almost naked, not literally, but I don't feel like wearing sunscreen. Super Fluid can also be worn on top of your makeup. As long as you don't rub it on your skin, gentle dabs will put down enough sunscreen without messing your makeup.
If you live in dry weather, Neutrogena moisturizer with SPF would be more functional. Super Fluid will work better in more humid regions, where you can use a lighter moisturizer of your choice. Super Fluid definitely climbs to the top of my wish list after testing out this sample.