Gearbest - It's not Amazon, not for the customer service, but for the price either, so it works for me in some cases
I'm mainly an online buyer.Almost every week I buy something, and among the different possibilities, I think Gearbest is, considering what you are dealing with, one of the best "chinese" pages.
BTW, I've purchased many items, and with some problems some times, I've gone through all the difficulties with kind of satisfactory results.
For example, with a defective part from one of my purchases, it takes like 20 messages (waiting 1 day for each reply) to make them send me again the defective part, after menacing to open a paypal dispute.Finally, 1 month later, the new non defective part arrived, and my 3dprinter worked perfectly!
If you are patient, both with delivery times and with customer support, you can save a really good money on many devices.
Reason of review: Fair pricing.