I have had more issues with c02. unscrewing the valves or leaking if you don't use it all or screwing it on and it blasts out before it's tight enough. it always seems more of a hassle. its pain if you just need a little to find the leak in a tubeless tire. even with a sealant rated for c02. it seems to cause issues. so with a good pump and a good hand pump its been good. Last time it was raining as usual so I could not find the puncture in the tire so I ran the pump and was able to find it and plug it .c02 woud never have worked. I jsuer my phone to make reminders to check the pump. so much less hassle then the co2