Worthwhile Upgrades for a 470

I was wondering what are some of the most popular/ quality of life improvements for a 470. Mine is pretty much stock just some different wheels on it from what my grandad put on it. Also I had a question I took it to the Lexus dealership my brakes felt really soft and I apply some really pressure to slow. They said nothing was wrong and gave the vehicle back. Should I seek a second opinion only one Lexus near me along with a Toyota down the street. Love this vehicle though.