It starts out efficient and gets more efficient as I become a better driver and allows me to enhance the batteries so that I can now get over 100 MPG and often over 200 MPG, depending on my daily drive.
I can drive in "EV" mode using only the electric motor and never even start the engine at all -- and driving electric is absolutely silent. The radio never sounded so good!!
I never have to worry about taking it in to the repair shop other than a once-a-year oil change (no need to change oil more often because the engine is hardly ever used).
The Prius says that I care about the environment