Okay, so my bedroom was basically a WiFi black hole - like three bars would instantly drop to 'connected but no internet' the moment I stepped in. After trying every 'hack' from aluminum foil reflectors to router repositioning yoga, I grabbed this little $20 box as a last resort.
Setup was shockingly easy - plugged it into my existing ethernet line (running along the baseboard like some ghetto networking pro), followed the quick guide, and BAM! Full bars in my previously cursed bedroom. The 2.4GHz-only limitation actually worked in my favor since all my smart bulbs and that questionable AliExpress security cam only work on 2.4GHz anyway.
Pro tip: The wall mount option is genius if you've got awkward corners to cover. Mine's currently perched on a bookshelf looking all inconspicuous next to my Harry Potter collection. Speed tests show about 85% of my main router's throughput - more than enough for Netflix binges without buffering.
Only weirdness? The web interface feels like it time-traveled from 2010 and sometimes glitches on Chrome. But hey, for twenty bucks and solving my year-long WiFi rage? Five stars from this formerly internet-deprived user.