Hi Onetrack,
Yes you are right, I don't have one. And you are right too, it is worth to buy base on the price and the quality.
I am not here to say anything negetive to the LumenLab PJ as I claimed. I am just here to tell everybody a little bit of the fact of this PJ. It is made in China, no problem for sure, just think how many thing you can find in the market, whatever products, not made in China?! but it can only be an OEM product instead of they claimed it is their product. I was a bit shock when I first saw the LumenLab website introducing this PJ. They did say that is based on an idea of DIY projector (which is I play for this idea for more than 2 years. I used the exactly same LCD panel, the exactly same lamp, even more types of lamp I've been trying). Because of they said it is similar to the China made DIY PJ then I started to do some search in those Chinese forum (yes, I am Chinese too but I don't live in China). I then found a exact same photo that LumenLab has post up in one of the PJ manufacturer (here is the link of the product if in case you are interested http://www.scrc-tech.com/cp-htm/products-e9.htm). I was even more shock that what the hack of the PJ looks exactly like the LumenLab one! and I start look at the details about it, EXACTLY THE SAME TOO!
One thing I am quite happy with LumenLab is their price, they set a very reasonable price for the PJ which is I said that is around 450 USD selling in China. I am not live in China but I have tons of friends live and work there so I guess I am able to share something that I know about the PJ to everybody in North America.
I am actually one of the poor guy that has no money to buy those impressive projectors, that is why I try so many thing to try to build one for myself. (the engadget DIY projector is something that I already built for more than a year, sorry guy you are a bit late :), but that is no problem, good things need to share to everybody!) I have not seen any actual picture quality about the PJ but I did see every other people in China making the same kind of projector and their result pictures. Some are very impressive and make me jump into it to start to build one for myself.
Finally, I hope this projector is a real deal then I don't need to build it for myself, I will just buy one from LumenLab or from China of course :)
So, good luck to all the buyers!

Hey folks, I am here to say something about this projector, just trying to tell the truth that I know about this.
First, this projector is not invented or created by LumenLab. It is one of many projectors made in China, branded. I am not 100 percent sure but according to the picture provided by LumenLab, it is exactly what I saw the same as the one that being sold in China. As I said, here is no offence to anybody.
Back to the quality of this projector, it is fairly ok but absolutely not great. Compared to my very old famous branded top model projector, it is quite similar in brightness and contrast. Mine is a 800 by 600 native, 250:1 and 500 Lumen, so you can judge the quality.
The LCD panel that used in the projector is a 7 inch 800 by 480 pixel and the color depth is "High Color" that mean it is not 16 millions one, it is around 262,000 something like that. The bulb that used in the projector is very cheap but bright.
The price that LumenLab selling is pretty good and fair. This projector sell for around USD450 in China and if you add on the shipping and something like that, it is easily more than what they asked for.
I actually followed LumenLab for few years and learned quite a lot about DIY projector from them. Until I found there are a lot of cheap sources that can found in China then I "SWITCHED". According to my experience using those parts to DIY a projector, I am very impress by the size of this projector. "How can they make it that small?" is my question and still my question without answer... I may want to buy one later to see how good this thing can be!
That's all for my words, enjoy everybody!