Summary: Personal Experience I'm owning such a unit (European market) since summer 2010. It ran over 30 public shows of 4-5 hrs each. I'm still satisfied about my purchase decision, the model is in deed a high end. What I haven't ever understood is why the 1920x1080 pixels model is so much expensive than this one (1280x800), I don't believe except the DLP matrix rest of electronics is differing much btw. these two. I couldn't afford to buy that model (DZ6710)...
Summary: Personal Experience We began deploying these when they first came out. We had had good success with the predessors beginning with the DW5000s and DW5100s. We now have over 80 installed (higher ed) and have had only one failure since we started using the DW series over 5 years ago. In our situation, the projectors get a significant amount of use. Overall we have in the tens of thousands of hours and the single failure was repaired at no cost. Great warranty.
Summary: Personal Experience We purchased a set of these about 4 years ago. Needless to say, they are both still running strong! We have used them for a range of different venues and events and we are extremely happy with them. Definitely become familiar with them BEFORE you put them into action. Although they are very easy to use, the controls are somewhat confusing at time and you need to do a quick read through the manual to ensure you don't "forget where that feature is".
Summary: Personal Experience The Panasonic 6000 series has been a good overall purchase for use in large to medium size lecture halls. I really like the air filter system that uses a cartridge and the projector ventilation system is very quiet. The image is very uniform and once tweaked up, the projector provides a very good color rendition of the color gamut. My only criticism would be that instead of having color temperature as High Middle etc.