Tom J.

I have ordered a tablet from this shop, unpacked it and turn it on. After 5-10 minutes of use, half of the tablet screen started to flicker and then goes dark. So I tried to contact their help center and refered to their 7 Days DOA Product Guarantee. I followed exactly the procedure on their web site and sent them email with attached photos. I sent them 4 emails within 7 days... and, no reaction from them. They didn't even send me a message that they registered my emails.
If you want to loose your money and end up with malfunctioning product Banggood is the right place for you.

Update: Ater 4 emails, customer service replied to me. They asked me to make a video of the issue with the item and send it by email. After two days they informed me that I have to check the shipping cost back to China and that they will send me back the money. We agreed on shipping cost and after 6 weeks, the item was back in China. Seller refunded the whole purchasing price in USD. As my currency is EUR and in the meantime EUR appreciated, I got less EUR than I paid. After another week they refunded also part of shipping cost back to China, so at the end I had a loss of approximately 20 EUR (due to partial refund of shipping cost and USD depreciation against EUR).
My final rating is that they offer guarantee, but you have to exchange several emails, send the item back, it takes several weeks till you get back the money and you have currency risk if your currency is not USD.
I have bougth also some items after this experience with the shop and will probably by more in the future. So if you can accept complicated refund (in case of an issue with the item), it is a good shop to buy from.