Just my opion regarding the quadrocopter.us.
I bought from them many times to build my Cinestar 8 and here is my experience:
1. One time their staff forgot my order and caused late delivery. I tried to call them at midnight my time just to meet them and make sure my order will be shipped however it seems does not work
2. I asked them to review my order when I purchase Cinestar 8 and other stuff to make sure that I have all items to build an Octokopter, no response from them and I have to reorder the missing part (take me 1 month later given I live far away from the US)
3. I ordered Cinestar Gimbal from them which cost $1500 and they sent me a error servo which will keep panning and can not work. I can't do anything except for trying to fix it at my side given If I return it would cost me alot of money.
4. Yesterday, I ordered some items from them which include 3 servos to replace error servos from them, their system debit my account and then later stage comeback with an email saying that I have to wait for one month given the servos are out of stock
(
Actually, I do not receive many customer support from them or the response is too slow while I need it urgently
Now I will try with other shops.
I hope that my case does not usually happen but for me it happens consistently.
Cuong