"Reading a lot of your posts you always advice against Garmin, you always promote others, seems to me you have some kind of other agenda... "
Not Garmin generally - just Garmin transponders with no ES and therefore no cost effective ADS-B solution. I guess it could also be said I am quite pro Trig. Trig is British and I have fitted quite a few now with no issues. The Trig built Bendix King KT-74 looks good. No personal experience of it but an interesting bit of kit;
KT 74 - BendixKing by Honeywell
Same price as the 328 but with similar functionality to the 330 ES.
Rod1