Just over two weeks ago my son tested positive, thankfully with mild symptoms. He works in a warehouse with some really scummy people who are not taking social distancing or mask wearing seriously. I say that from what he tells me and from the fact that when I pick him up from work the police are always patrolling the car park, fights and vandalism are common.
When he tested obviously we went into isolation, informed my daughters school, the driving instructor and some friends we had seen outdoors the day before. We all tested and only he was positive but registered all the tests.
The reason I am writing this is that test and trace worked exactly as you would want, everybody we know we had been in contact with got texts that day, we were contacted and told to isolate (no surprise there) but given all the information on how long what to do etc. plus how to get support if we needed prescriptions or other help. We were contacted again just before we were able to come out of isolation asked about symptoms etc. all retested negative and told OK to go out.
I cannot see how the system could have worked any better.
Felt very sorry for the driving instructor, my sons lesson was the first time he had been able to work since this all started, the fact he was able to be polite when we told him says a lot about the man.