So I have an '01 Aurora.  Bought it from a dealership with 68k on it apparently a trade in from an elderly couple which from the condition of this vehicle sounds like the truth.  The car is flaless in and out, and runs great!
I have now had the car for about five months, and still LOVE it!!  I have noticed a couple of issues, the first being my gas guage will start going up and down significantly once its down past a 1/4 tank.  My guess is its a sensor problem, but not the biggest deal in the world.  Im in sales and drive a lot and although this thing has a V8 in it Im still getting 19-20 mpg in city conditions!  I was shocked by this and the comfort and clean looks really are worth it.  I picked it up for only 9K which is why I got it, plus my Dad had leased one back in 01 when they first got redesigned.
As far as peoples opinions on reliablility I have a 95 Jeep Grand Cherokee which people are constantly telling me how crappy those vehicles are, expensive to upkeep etc etc but mine has 228,000 miles on it and still runs good. Starts up every time, has some minor things here and there that are flat out wearing out but otherwise the thing is great!  It was my first car and I'm holding onto it until its dead then I'll rebuild it into an off-road vehicle for fun and the learning experience of that. I take it to the mountain, LIGHT off-roading, snow whatever and hasnt cost me anything major in repairs (just reg. maintenence ie radiator, hoses, belts, plugs/wires etc which I do myself most times).
I'm really hoping with the same attention to the condition and servicing on my Aurora I will get the same results. I DO take a lot of pride in maintaining my vehicles and I look forward to owning this for a long time.
OH BTW, my Dad who is now in the market for a new car went and test drove an 08 Cadillac CTS and came back to say that he liked my 01 Aurora better.  Even said he thought my Aurora had better power!!  I was shocked, but I think he was a little biased haha.
Thanks for reading my .02