For more than 2 years it is attached to my wall, I have to watch 3-4 movies a week and I still did not change the lamp. It is not too noisy (unless perhaps watching a mute) and is very bright, it has not really feel it plunge into the dark as a movie theater. More painful, there are almost imperceptible image swings but are very troublesome when there is attention. I talked with a friend who also has a Optoma, but another model and it also has this problem. Maybe is it a defect related to the brand? I am satisfied, but would not be true to Optoma if I had to change it.
