Pros: It's an awesome concept. Only oil and no propellants!
Cons: Extremely poor construction/materials. My Target knock-off Misto is much better quality. Constantly clogs.
I love my Target "knock-off Mist-o" a thousand times better than my name-brand Mist-o. I bought both around the same time because I like to use different kinds of oil and didn't want to have to empty and refill every time I wanted a different oil. The Misto clogs up so it no longer mists. It should be called Stream-o, not Mist-o. I tried cleaning it, soap & water, tiny toothbrush, etc, but I haven't been able to get it to mist again for more than one pump. So while I still use it (a small stream of oil is still less than a tablespoon of oil in your pan), when I want actual mist action, I use my cheap no-name brand which works perfectly. Although I have cleaned the cheapo just so I don't get rancid oil, I've never *had* to clean it to get mist.