This machine saved my life for balloon arch!! I had no idea these even existed until i searched for a manual one and found this gem. I love that it has 2 pumps so 2 people can work at the same time. Also comes with small adapters for the balloon entry. I had small balloons and found that if i covered one hole the machine worked better for that size balloon. Like it needed more power to blow it up. Regular balloons will work just fine though. Noise level was ok, you cant expect a quiet pump. And suuuper easy to use! Just plug in and go. Also, it has an option for continuous air OR an option where it only blows air when u attach the balloon and press down. Amazing i love this thing.