I have only had one flat on the road, then I went tubeless. Problem has (so far) been 100% solved. No pump, no tube, no CO2. It's pretty nice.

It should also be said that I live right in the center of most of my rides, and my roommate is always near her phone, so in the event of something catastrophic, she can pick me up. Thankfully, nothing tire related has happened in 3 years though!