Well My 99 Bonneville is going great. I do have a slight oil leak from either the lower intake or valve cover gasket that just slightly burns off the rear exhaust manifold. Not an issue yet however. My wife has not even noticed it yet (smell).

I drove the car the other day and did not like how it sqirmed around over bumps or uneven pavement etc. I know from experience that a simple alignment can fix issues like this. Well I was right. I have a great relationship with Firestone so I left it with them and also had them inspect the whole suspension. Everything is tight (ball joints, tie rods, etc.). Three of the four wheels had camber issues and slight toe issues. Everything was adjusted to spec. What a difference, it feels like I just took 40,000 miles off the chassis. Tight and straight over all different bumps now.

yeah it makes a huge difference and also if you do not have your car aligned for a long time it wears your tires out in odd places and can end up making you replace them so yah alignment is always a good thing.