It's still early (only been about 3 weeks) but so far so good! I love the application itself. I bought two hoping to convert my husband too but the application turned him off. I have tried multiple natural deodorants, and as much with natural and non-natural deodorants, I always find that after a stressful and/or long/hot day, I still have some type of smell. It's not always bad, but it just smells like a chemical reaction with my smell and the product smells "off" after a few hours. This does not happen with No Pong... like at all!! All the natural deodorants I had previously tried also gave me some type of reaction (inflated lymph node) after a few days of use. I also never liked how there seems to be some type of residue that sticks to your armpit even after showering, so I would always obsess trying to scrub my armpits for a very long time to get all of that out. With No-Pong, as soon as you just rub your armpit with your hand under the water, you can feel the oil just come off. I wouldn't say that it lasts more than 24h, maybe up to almost 36h, but I reapply daily. I have found that applying in the morning keeps me feeling fresh for the whole day, even on extremely hot days. Also, I have repeatedly asked my husband to smell me at the end of a long day and he said that with arms down, there's 0 smell, with him sticking his nose close to my armpit, there is a very light smell but it isn't bad (and trust me, he is not one to hold back, he is the first to tell me if I stink lol!) I'm excited to try different smells. I do find the price tag to be a bit high, but given how good this is, it is worth it. Also, love that it comes by mail!