I purchase the ex7200 for use in child 's church in a fairly small , fluorescent-well-lit classroom . have a high quality lcd projector open up world of possibility for education , and I could not be happier with this projector . it be also night and day go from the small 15 '' wide-screen lcd tv I have at my disposal -lrb- from the church -rrb- to a 86 '' projection screen -lrb- of course , you could go much bigger if you have the room ! -rrb- . there be a multitude of option , include 5 or so `` color mode '' for different viewing situation , include project onto a whiteboard or blackboard ! Controls be fairly intuitive . projector can be shut down and unplug without have to let the fan run to cool down -lrb- though I would recommend let the projector cool in the open for a couple minute at least instead of immediately stuff it in the case -rrb- . the usb plug and play be nice , but be warn . the usb connection be a fail for powerpoint with animation . slide transition and even simple roll text be choppy and jumpy with the usb connection . the VGA cable -lrb- supply -rrb- work perfectly , however , and the projection be just as smooth as it be on you computer screen . this projector also allow you to connect multiple video source simultaneously and switch between they easily . there be also a tiny blue dot visible on dark background -lrb- esp . black -rrb- in the bottom left area of the frame . I be assume this be a minor defect with the imaging system in my particular projector . it be just one dot -lrb- maybe a single pixel -rrb- and not very noticeable . Worth mention , but probably not worth the hassle of return or exchange . do not make the mistake I do and purchase a screen with the wrong aspect ratio . this projector have a native resolution of 1280x800 which be a 16:10 ratio , not 16:9 . not sure how I miscalculate that , especially when it even say 16:10 in the description ! if you use this with a 16:9 screen , you will not be able to make the projector image fill the screen -- it will be `` letterbox '' by white screen material on the left and right . image adjustment with this projector be fully optical -lrb- focus and zoom ring build into the lens -rrb- . use the optical zoom allow you to enlarge or reduce the entire frame to fined-adjust screen fit without have to move the projector itself and without loss of resolution . last , do not think this projector be go to look just fantastic in a well-lit room . do not get I wrong , it be very usable with all the light on , but darker color especially will be wash out and obviously you contrast will not be the best . unfortunately , the room I be in have all the fluorescent light on one switch , so it be either all or nothing in term of room lighting . so I simply make a makeshift cover out of some thick cardboard to partially block the light closest to the projection screen . this make a huge difference . I be just say be prepare to experiment with you setup to get the best balance .