Use expensive or inexpensive capacitor for decoupling
The picture on page 12 of the Johanson datasheet shows the difference between it and a normal multilayer ceramic capacitor (MLCC):



The part on the left is a normal MLCC. The part on the right is the Johanson part.

The Johanson part is a 4-terminal part, actually a capacitor network with two separate capacitors with one shared terminal. By connecting the "A" and "B" terminals together, you obtain twice the specified capacitance. Because of the feedthrough shape of the ground terminal you also probably achieve lower equivalent inductance and a higher self-resonant frequency.

That said, 90% of designs can be done using normal MLCCs for decoupling. If you need higher self-resonant frequency, I'd recommend to first try using a smaller package than 0805, and only if that isn't adequate, consider using one of these specialized high-cost parts.