So far, so good! Easy to set-up and for my 10-gallon standard planted tank, it makes more sense to run it 24/7 than turn it on and off. Your mileage may vary so please experiment on your own, but if you’re just starting out with CO2 this is an inexpensive and easy way to do it.
If you’re running a nano tank and are curious about getting into co2 injection; This is a great little starter kit. It’s easy to set up and does produce co2 for weeks between resets. One small tip, give it a gentle swirl every few days. I found the reaction can stall out shorter than expected if the yeast doesn’t have new gelatin to consume. Happy aquascaping everyone!