As I reply I see Chris has already. He has made a valid point.
Brian here is my view FWIW. I have a JR DSX9. Love it. Had it 8 years now. It has done what I have asked for it without issues. Taranis X9D. Looks similar to DSX9, feels the same in my hands but with more switches and knobs and a third of the retail price.
I have only had it 10 days and have spent some serious hours playing with it. Initially I was doubtful whether at my time of life I could handle the learning curve. A took a few days for the new way of doing things to sink in plus a little help from others that have already gone Frsky and endless hours of reading a Start Guide.
Using a PC based program OpenTX Companion 2, Makes life really easy. you can program it and see some of the results on a simulated screen. You can create a new model from the "wizard" and then edit it for your needs. Then if you are happy you save the model to the radio and backup goes to PC. You make another edit and totally cock it up. Damn. Bring up the backup and rewrite to radio. Having a backup makes you feel a bit more secure. And the fact it can so much more than other TXs.
The other main reason is JR are no more, I don't like Futaba and the other alternatives are too expensive. I have also gone to Taranis for voice alerts, Telemetry and add ons are relatively inexpensive.
That's my personal view. I'll be keeping the JR though. At preset I am moving (attempting

) to put my gliders on it for starters and later any thing else that could do with telemetry. Plus the bonus is having a "backup" of all your models and settings stored at home so when you cock up something on the TX at the field you can recover it as it was.
There is a Getting Started Manual but the pdf is quite large for the Forum The other manual is YouTube for one and of course other dedicated Forums.