I do a lot of presentation , and the most important thing I need be the ability to control the presentation -lrb- move the powerpoint slide up and down -rrb- from the remote . this projector do not allow you to do that . when I call Optoma to ask how to use the remote to do this -lrb- think I be miss something -rrb- , they say they have make a marketing decision to not put that feature into they cheaper projector . well , they may think $ 650 be cheap , but that be real money for something that do not do the most basic thing need in a business projector . the remote be also miss a `` hide '' function , which I find very useful . if you do not need either of these function , the projector be fine . also , if you be a road warrior like I be , 5 pound end up be too heavy . Stick to a 3 pound model . Optoma make one , it cost about $ 1000 , it probably have all the miss function , but after this experience I will not be go back to they . I 'll most likely be buy another Planar .