We've been having problems with spongy and weak brakes on our RX350 for a couple of years, multiple visits to dealer hasn't resulted in any improvements, and they've done both pads, rotors, and it's still not great.
Symptom: There's just a lot of delay from applying the brakes for them to work and unless you slam, it will not stop, so it's kinda difficult to do a smooth, gradual stop.
Any ideas? Is it just the nature of this car? or it's something that can be updated? like pads? or fluid? etc...?
Thanks