I got the rotorgeeks 12A ESCs (v4) and they work flawlessly on my 4S quad. I didn't even have to calibrate them. Hit the mark right off the bat.
Service and delivery from Canada to Massachusetts...
Last delivery received within 3 days, wich is, from Canada to Switzerland, quite a speed record ;)
Couldn't believe it ;).
Besides : outstanding service + among the best items quality I've seen on ...
It really is a pleasure shopping at rotorgeeks
Excellent products (The RG20's are amazing)
Swift delivery
Good prices
Rotorgeeks is the best place to go great service,great options,and great prices i highly recommend them.
Communicate really fast when you did a mistake in your order. Fast shipping. Open a package is always a pleasure :) great gift every time (stickers and straps).