Nothing has gone wrong with the car yet.
It has the chronic "ticking" syndrome that I have heard is common with these cars.
I have nothing but good things to say about the "big" 3.0 L. It is definitely the most powerful V6 I have ever had the pleasure of driving.
I also love the 5-speed transmission. The shifter is in just the right place. The gears shift very smoothly.
The Maxima is a very comfortable car. I'm 6'6" and have no problems with getting in and out. Relatively roomy.
All of the power is still there. Even after 146000+ miles, it will get up and go. I love blowing the little "vtec" Civics away on the weekends. The "4DSC" decals on the rear opera windows definitely do not lie.
It handles like a dream.
I've got a 1992 SE with 116,000 Km which I've owned since new. No problems so far. All I've done is to do the regular 6000 Km maintenance. I guess I'm lucky so far.