I have had one for about 18 months and love it.
I have done the back light mod, which is plug and play.
I have installed a LIFEPO4 3s battery which I charge perhaps once a month.
I also have Frsky module and telemetry/diversity recievers for better range.
There is alternative firmware available that is far more flexible than stock but I am still on stock version.
Just remember though that it is a cheap transmitter.
Gimbals are not as smooth as the more expensive ones and build quality is probably not as high.
Any reason you are not looking at the 9xr instead?
Although if you intend using either with the Naza, DON"T!
The centring on the sticks with either 9x or 9xr is not accurate enough.
This in turn makes the Naza still think you are giving some stick input so GPS hold may not give the expected result.