I left the UK many years ago and now live in Florida. At this time I have only ADS-B in on my tablet which give me weather information en route, and as a bonus traffic information when nearby aircraft are interrogated by someone near me who has ADS-B out. Now I fly a low wing aircraft with excellent visibility, but I seldom see the reported traffic even when quite close. In one instance it paralleled my track and was a mile or so off my wingtip, clear day. And I have had a panic or two when I suddenly had a wingman who was not there, ghosting from my mode C returns when flying in rough air! So see and be seen. ADS-B is no more than a heads up, and that is where we should be looking!