I asked him some questions about it at the time and I’ll paste his answers.
“It does it's best to make up for the cues by showing the power in red when you are wasting watts by pushing too hard downhill and into corners. Sharp bends it actually scrubs off speed if you put in too much power going in which is clever. I think it's suited to smart trainers specifically as the resistance changes according to level of draft which is great. Also it tells you how many watts you are gaining when in the draft so quite intuitive but you have to watch the race a lot more carefully than in zwift”
“ Also the other nice feature is if you are being ridden over your avatar has to slot back into the draft which agaim is more like real life. It means that attacking is more worthwhile as in reality if you blast past someone the overtaken person doesn't just instantaneously become "in the draft" like in zwift”