I have the WD-57732, about 6 years old. I had a guy replace the bulb & re-calibrate it a few years ago. When visitors come to the house they rave about the PQ. So I guess it is OK. I have a very quiet 4" fan to help draw the heat out when it overheats.
I like some of the newer sets that use Wi-Fi. Right now I have the Directv DVR hooked up wired to my broadband.