I own this projector. It is AMAZING! I got mine refurbished too for this price about 5 months ago. I currently have it mounted to my ceiling in my bedroom and it projects a 143 inch (I measured) screen on my wall! Now, admittedly, if you are some sort of videophile you will not like the screen this big. You can certainly see the pixels and text is hard to read (but you get used to it). As someone who doesn't mind not having the crispest picture ever, I just freaking love it. Everyone who comes over is blown away. I do all my computing on it and it works fine for that. What it really is best for, though, is the after party. After going out to the bars, I'll have a small gathering at my place to smoke hookah and watch music videos on the projector. It's so bright it keeps the room at the perfect amount of light for this sort of gathering, or for a more private event.
If I have to point out the negatives they would be as follows: Mounting it upside down on the ceiling is not what it was meant for, it has the ability to reshape the image, but the sides are noticeably curved and the screen is not uniform throughout the picture. It seems to sort of fall out of focus for some reason, I have to fiddle with it occasionally. It mounts off center, my house is old and shakes and it slowly "tilts" to the side, which has to be fixed occasionally. So, overall, I would call it sort of finnicky. But I'm a tinkerer so I don't care.
Bottom line, I am incredibly impressed with where the technology is. This is a fantastic unit that I love owning, but I can't wait until they make it a little bit better (better shaping, full 1080p at this price point). I imagine in five or so years I will be buying the next one, but I don't regret this one one bit. If you're on the fence, get it, you'll be glad you did.