I’ve had great luck with my EX-II Expert. Bought everything from Absolute Hobbyz, they are the North American distributors for KO. Very knowledgeable about the product with good stock.
KO seems to be the last of the Japanese companies that still make all their products in Japan. (To my knowledge) I believe Sanwa and Futaba moved production to Taiwan/China. Not a deal breaker by any means as the majority of RC products are made in China it seems.
I like how modular the tx is, main components break down, grips are adjustable, the trigger is fully adjustable, the reverse/brake arm is “ball mounted” and can swivel to custom fit your finger. Menus are dead simple to navigate, black and white lcd, easy to read. No color touch screen, kinda what drew me to it, simple and reliable. You can get an optional lipo battery with base etc.