This was an easy 5 star product. I was looking for a fog machine on a timer, nothing fancy. What I got was not only that, but a very compact, well constructed machine which has a unique timing system. I thought it would send out a short blast at the interval I set it for. Instead, it sends out a steady stream for a minimum of 15 seconds, followed by a 15 second pause to warm up, then back to another 15 second blast, over and over, until it runs out. There are other settings however, this is the only one I use as it's perfect. I did purchase an extension hose as this is pumping fog into a graveyard display. Since I've only had it for about a month, I cannot speak to the longevity. I will say though that I've run a few tanks of juice through it and it's been flawless. For this price, I expected much less. Great product!