I can only speak of my own experiences dealing with HobbyKing & they have all been positive.

I've bought about a dozen Lipo batteries, a couple of cheap chargers and a model mount video camera.

All low dollar items & all have exceeded my (very low) expectations.

At the prices charged for these goodies I was prepared to accept a few failures but so far, so good.

Would I buy an expensive item which may require back up or service (like a turbine) ...... No.

John.