I purchase this when it be on sale during black Friday week and just recently set it up as it be a Christmas present . . why bother say that , well , I probably should have research a little more before make the purchase , but it be a really slick deal and well , I just go for it . that be say , the number one reason I decide on this particular system be the Wi-Fi `` build in '' option as list in the product description . dongles\/adapters suck . they always have . I do not want one so I buy the one system on sale at that time that say `` build in Wi-Fi . '' well , build in means that the dongle come in the box rather than have to purchase one separately . I think about send it back immediately on principle , but I probably should have do more homework before buy so I just decide to give it a shot . -lrb- I be sure it say `` built-in '' = adapter somewhere else -- like say in the other review here -rrb- first night : set everything up , let software upgrade , wireless work , netflix work . sound great , I mean it , it really sound good for the sale price . . Ok , I think , not so bad , at least I do not need to run more ethernet wire ... Day two : turn it on , go to try pandora -lrb- which be great on this by the way -rrb- I get a error that it could not connect due to `` Network interference '' . . ok check network setting , only `` wire '' be a option . Unplugged and plug in the dongle . . it give I `` wireless '' as a option again but do not recognize any wireless network . . long story short , the dongle fry itself or be just on the edge of self-destruction when it be throw in the box . . I spend WAY TOO MUCH TIME try to get it to work . I would not have spend this kind of time if it be not for the fact that it actually work at first . anyhow , first call to Samsung . not so great . nice enough tech but she final recommendation be to buy another dongle . I stay polite and non-confrontational and just ask if she be sure that this would not be cover by warranty . she say yes . well , ok , I think she be wrong and thank she for she time . I decide to just wire the thing to my laptop and try updates\/see if there be newer firmware\/etc . . also it allow I to try chat support . both time , they be very quick to respond and nice enough . no earth shatter troubleshooting but they do explain how to reset the unit to factory default -lrb- hold down the stop button for 5 seconds while there be no dvd in it . . -rrb- cool . I do that , try the dongle some more . . etc. . no luck so they give I the number to call for tier ii tech support -- -rrb- this number be just the regular customer service number and there be no option for tier 2 in the menu . . ok . . I get another tech and ask for Tier 2 . . she -lrb- Kasey -rrb- say she could try some stuff and ok I go for it . SHE WAS great . I mean it , truly a breath of fresh air in the oft malodorous world of `` support '' . I be perfectly ok with the the win some lose some sort of attitude one must have when call tech support\/customer service for anything . every company have some really good people answer they phone -- -rrb- it be just rare to get someone so good on call 2 . . anyhow , she listen to what I have try , suggest a few thing to rule out error elsewhere , and then just send out a new dongle for I to try . Perfect . . no unnecessary nonsense , and it be good to know that the first tier people you get at samsung be empower enough to actually issue replacement part without have to talk you way up the chain -- you just need a bit of luck for who answer when call in I guess . in the interim , I just run more cable and I have the unit run that way . it work great this way so I doubt i 'll even use the dongle except to maybve see if it just incinerate itself as the previous one must have do . short Version for the rest of the review : feature : five Stars - Netflix , Vudu , Pandora , you Tube , all work great and great quality ! nice . wi-fus : one star - not as advertised - not `` build in '' sound '' four star - very admirable for the price error message : one star - they really be terrible -- there be more I encounter , but say `` Network interference '' as a error message when the unit do not even recognize that the dongle be plug in be just absurd . . they should just say `` error '' for everything as that would be about as useful as the error message that they actually give and at least will not mislead you . coolness stuff : the WLAN adapter port on the back be just a usb port . . this be cool because you can throw a memory stick\/poratble harddrive back there full of pic and a video or whatever and just leave it there out of site . . there be a usb port on the front as well which be design in a way to prevent you from pug in the WLAN dongle in the front . . however , plug a hub into it would allow you to use the front though i do not know why you would want to other than for troubleshooting -lrb- I be test to make sure that it be the dongle and not just the usb port on the back -rrb- more coolness : I have plug three different brand of usb memory stick and 2 different portable hard drive into it and it recognize all of they and allow quick access to music\/pictures\/video etc. . . -lrb- also a network hard drive -rrb- I can not comment on what format it accept , but it seem to have good coverage . . -lrb- though it do not recognize a . wav file -rrb- one big plus , my video folder on my portable hardrive crash window explorer on my xp laptop and on a xp desktop but it do not crash this unit . . nice ! overall , I be very happy with the system now that I have the internet wire . I can not give it more than three star though because it be not really as advertised and the dongle fry itself . if they actually have the wireless build in and it work , it would be five star for sure ... please , please , please Samsung , stop use adapters\/dongles\/whatever ... I know it be a money make thing , but it very nearly result in a return and still would be it not for the other good feature of this product . anyhow , as long as you know that you be not actually get build in Wi-Fi , you should be very happy with this system .