New (rear) brakes installed...

I got my brakes installed last Thursday. Here are my initial observations and thoughts: There is a definitely noticeable improvement in braking power. However, I can tell how inferior the fronts are now in comparison to the rears. Additionally, I can also tell how spongey the pedal feels now; I could really use the stainless steel brake lines. But, I can definitely feel an improvement and look forward to at least getting the fronts replaced with equivalent parts, and ideally to get the SS lines as well. Great purchase, definitely worth my money. So far I have experienced none of the noise reported by some other people.