Iv had a tyre repaired before but to be honest it was a waste of money as I ended up having the tyre replaced about 6 weeks later.
Not because it leaked or anything but I just didn’t enjoy riding the bike as I didn’t trust the tyre anymore so I couldn’t relax and “enjoy myself”.
I’d like to think that if it’s legal to repair bike Tyres then the repaired tyre must be 100%safe, the problem is that voice in ya head saying otherwise gets very loud as your leaning into a corner doing a ton with cars coming the other way .