Pretty nice... since I have children that need their bouncy balls filled and my bike! I just hook up it up- put on the correct adapter or you can just use it to air a tire then flip the switch; flipping it off as soon as you reached the correct pressure. I used it on three of the kid's balls and my bike. There is a gauge already on the pump so you can tell how inflated your item is. Love that it fits neatly in the case. I thought it would be louder but it's not bad at all. It's not heavy or cumbersome to operate in fact it's very light. The instructions were lacking but I figured it out.