functionally ok .. but a bit on the porky side .. .
Mine both weighed in at 10.4gms each. I contacted the supplier who insisted they were genuine product, and offered a refund, but gave no explanation as to the 15% weight increase. servos weighed without arm or fixing screw so all up weight even higher.
Decent torque and speed for low load applications. Good value for money.
These seem to be excellent quality, being fast and good repeatability. I do not think I have had "1" Turnigy 9 gr servo failure.
I use them both indoor and out.