Bought this to plug into a newly acquired Toshiba 32RV753B TV. Basically, although it seems a flimsy bit of kit - itr actually works. It comes with a flexible mount about 4" long and plugs into a USB type port on the right hand side of the TV. By careful positioning you can hide it from front view - which needs to be done as it has a bright green LED glowing to indicate power and data reception.
I used this with a SKY Netgear router (single band) and was disapointed to discover that even one brick wall away reception was marked weak. Copious amounts of experimenting could not enhance the reception through the wall - though in fairness there are other 2.4Ghz devices in both rooms. The dongle is dual-band, so if I upgraded the router then I think the problem of poor reception could be solved.
Setting up was OK, provided you are at least a little computer savvy, and know something of routers and networks. But basically it does what it says on the tim! I kitted my XP computer out with MEZZMO to make it a media server and the TV recognised it immediately. I was then able to 'see' my computer with its folders and files to stream music/pictures/video clips etc. All was OK apart from occasional glitches - due I think to the weak signal strength.
Basically very pleased with the device - some have written that you might be able to use other devices instead of the specific Toshiba one - but I've not tested this - nor am likely to try!
Not much documentation - but the Toshiba main TV manual is your friend at this point.