Summary: This is a great project when it works... I have had the same problems as many others. I have only 700 hours on this project and it will shutdown approx. 5 minutes after being on. At first it only happened once, however it now seems to happen twice when it's first powered up. Hopefully, Panasonic will pony up and replace this defective project. I will update this once I find out.
Summary: Personal Experience This is the biggest pile of (*&&%) I've ever owned. I bought it at the end of July in 07 and by August I was having problems. For one thing it's flimsy. It has the look and feel of a toy. The picture is respectible, but the unit really requires darkness for the best effect. I had problems with the HDMI syncing with my DVR. The picture would blink on and off. Contacted support via email.
Summary: Personal Experience My first AX100U last till about 400 hrs. At that point the unit show its defective iris issues. The store I bought the projector from had a good return policy. The second AX100U show the same problem at 325 hrs. One of my co-workers also has an AX100U that he is sending in for repair for the same issue. The projector should be recalled.