damn..just bought one this morning, and it failed on me.
The moment i switched on, he green led lit.....then blinked. few seconds later no lights...tot it was rebooting..till i smell something burning.

Called Aztech, said they'll replace 1-1. Called the shop and they said can 1-1 exchange from them also, bubt i lost my confidence so i asked if i could get other brand (TL-MR3420) but other brand unavailable (with 3G router). So i'm stuck with aztech. i chosen because hw550 supports usb hdd and printers. Now, my petrol and toll to get for replacement just not worth it. at least they offer 1-1. i havent had the chance to test my 3g yet... pssst savagez, can pass me yours? hehehehe

Great news, I got 1-1 replacement in 10 minutes. I asked the person who changed it for me, " dah test ke? nanti jadi lagi susah pulak. Baru on dah rosak", she said "dah".

Worse thing.... It failed and the burning smell in the air again. When I check with my multimeter, the adapter output was 40V instead of 12V. No wonder! And I have to go back to get another replacement. Crap! Double crap!

Cost of going to their service center is almost RM30 of gas+toll. Going there again tomorrow?? Ended up like paying almost for 2 units already. c'mon!!!!! If they replaced the whole set or even properly check like what I have asked, this thing wont happen!

Great customer service (quick replacement) but very2 bad in terms of proper checking. Lack of testing procedure i guess. They only test to verify the returned items but not the ones their replacing. Do I qualify for any compensation?