I have made two order for 30a ESCS First 4 arrived. I had a problem - I eventually had to buy a ESC programming card and found one was on totally different settings than the other three. So either quality control is none existent or its been used - repacked and sent out again. I discovered the programming card from a forum member who had the same problem - which was just as well because Emax took a long time to reply to their support ticket system.
( this is still a problem! 25/08/2016)
UPDATE:
I wrote this a while ago after I was new into the sport of quadcopter flying/building.
I expected the major store to be better than eBay re sellers or shifting sub standard products and rejects.
Emax did send out a replacement - although typically anything from China takes a long time to ship out.
In conclusion, they sell good products and like most in China - unless you pay for DHL - your order or replacements will take time to arrive.
I have upgraded my review on the quality of items and accept shipping is equal to the amount I wish to pay and in my control not Emax.
Second order for the same 30A ESCs. Again a problem with the quad flipping over on take off. I checked the settings. OK. Still a problem. Then I found this one ESC was getting over warm when the other three were cool.It had not taken off and flown - so it should not be showing any signs of heat!
Reply to yet another support ticket and after yet another delay in days for that reply - I am asked to submit a video! I ask how I can video heat in an ESC? I say I can show a video where the quad flips - but having smashed a $30 flight controller - I don't want to destroy another! So Sean Cosby from Admin said he would send a replacement and ask " your sales manager to contact ".
I waited another week - finally I get a notice to check my ticket. It was wrong - Sales manager Echo - had replied to the closed FIRST ticket and suggested I send the defective item back to them for checking!
Echo obviously did not read that I solved this issue myself and closed that ticket!
Why am I doing this review?
Emax products are basically very good - which is why I pay extra and go direct rather than buy off eBay or the usual lineup of drop shipping online stores in China-Hong Kong - Singapore - Malaysia and Philippines!
BUT if they make the effort to create good products - they should also have a GOOD back up - product support system and Emax just do not.
It took a full month from order to delivery - same slow "free shipping" taking over 21 days - but Emax make a separate charge usually about $8 - $10 and also make a charge for using PayPal!
Second order - same slow delivery at same cost and seemingly - same problem with some item not being 100% as they should be.
Emax do not care ( it seems) that people buy because they want and need items and are prepared to wait delivery... NOT dealing with support requests and having poor internal communication - which in my case resulted in another delay because the "sales manager" is not even on the right complaint!
So two orders placed - two problems - two long delays - all create a bad feeling and do not reflect the quality of their products - its like making a great automobile - and fitting square wheels!
I need more 30A ESCs - but I will not buy from Emax direct.
Ticket #LAJ-***** - #******-0025
Please send the FOC replacement and NOT wait for my third order to include it with.
Too much trouble dealing with another order and an expected problem.