The GS300 has plenty of great features, but the user interface to those features is horrific. If pushing 4 buttons and messing with the touch screen is your idea of how to mange the heater, then you will love this vehicle. I do not want a vehicle which is constantly drawing my eyes from the road, and causing distraction.
Gas mileage and 5000 mile oil changes.
Rewrite the software. Remove the flip out control panel, and separte the buttons for beter ergonimcs. Remove interior sources of dangerous glare.