2.4 Stick transmitter

[Man]

Have used an Etronix 2.4 set for the best few years and all has been well. When we got them 40 and 27 meg were still in use quite widely.
The units are good but it has been iincreasingly noticable that whilst these units become more and more popular, there does appear to be more weird interference type behaviour from cars.

So my question is, what are good options for stick sets that I can consider. I want to maintain a good UI for setting changes with LCD display. Would also look at getting a better set. Not running more than one car.

Cheers