I have to write a review for this amazing product . I purchase my Qumi in August , so I have have enough time to play around with it and give a honest review . the picture quality be just amazing . I use to have a older Sanyo pj that be just standard def . replacement bulb for my Sanyo pj be $ 500 each ouch !!! the qumus seem like it be light year ahead of its time when I first see the image on my screen . the qumus do have to warm up for a few minute before the focus be clear . it be nothing major with 30,000 lamp life , if the few minute it take to focus bother anyone that much you can just leave this wonderful device on all the time -lrb- in eco mode -rrb- and you will never have to worry about the focus issue . sometimes I leave my qumus on for hour at a time because I do not have to worry about a bulb !!!! when I do leave it on for long period of time I simply switch from normal mode to eco mode and when I be ready to watch again turn normal mode back on and I be experience eye candy !! my wife like the pj also because it really do look like a oversize hdtv . I do have my Qumi in a dark basement , but I can leave on a couple of light -lrb- away from the screen -rrb- and the picture be bright enough . my brightness be not even all the way up it be like at 60 -lrb- can go to 100 -rrb- . as far as 3d be concern the qumus can put out a 3d image with extra hardware of course , but the qumus can do it . I watch Drive Angry 3d and the picture brightness be kind of dark , but in a dark environment the picture be still bright enough to enjoy a 3d movie . the qumus be a great product and the selling point for I be no more bulb to buy ! just turn on sit back and enjoy . you do not even have to worry about fall asleep with this many hour on the bulb . you could run this projector for 24 hour a day 7 day a week for 4 year before the bulb show any sign of fail . that be just wonderful ! fortunately , no one will run they Qumi for that long so therefore , you Qumi will last you for at least 10 year use it like you would you regular tv . hopefully by then the Qumi will be cheaper and I can have one in every room that use to have a hdtv . the future be look 300 lumen brighter , thanks qumus for a great product . I would recommend this product to anyone look for a economical way of enjoy hd on a huge screen .