my previous projector be a sp4805 I have for many year . I decide to upgrade to the 8100 . I have have my unit for year and a half now . the projector itself be awesome . not a single problemwith the unit itself . amazing picture with good brightness and lot of bell & whistle . its easy to set up , easy to operate . the remote be very useful and easy to navigate . some people complain about the fan noise . yes you can hear it but not so loud to be a negative check to I . I guess it depend on where you have it place and how loud you listen to you sound system . the main problem be that it be blow bulb at 400 to 600 hour . they be suppose to last 4000 hour . Epson be aware of the problem and replace mine with no hassle and I get it promptly . I be on my 3rd bulb . I just call Epson and they take some info and ship it free and provide the label and packaging for its return . I realize this be not the greatest way to do thing . I agree Epson should recall these unit and get the problem fix . it be very inconvenient go thru the motion each time to get the bulb replace . although I buy the unit from best buy , I go thru Epson for the bulb . I love the unit and I guess as long as they keep replace bulb for free I 'll just keep on go at this point . but besides the buld problem its a great projector .