I bought this set of essential oils because I've recently been interested in getting into oil diffusing for stress relief, and I was able to buy a two pack of diffusers on Amazon for a good price. This set of oils seemed perfect for me because I have not used any essential oils in the past, aside from peppermint and tea tree, and it seemed like an economical way to figure out which oils I like. I received these today, and I was super excited to begin diffusing. As you can tell from my picture, the oils were divided into two bubble wrap packages and put into a box for shipping. The first thing I noticed when I opened the box was that one of the packages of oils smelled a lot like lemongrass, which made me think a bottle had leaked. After opening that package and inspecting the bottles, none of the bottles appeared to be covered in oil, but they all smelled like lemongrass. The lemongrass bottle itself also did not appear to be covered in oil, and the cap had not been opened, so it must have only leaked a very small amount.As I unpackaged each bottle of oils, I opened them to see what they smelled like. Since I am new to essential oils, I can't really compare the smell of most of these to any other product. However, I have purchased tea tree oil in the past for my hair and skin, and I can tell you that the one in this set does not smell nearly as good as the other one I've bought. Also, I recently purchased a bottle of Now peppermint oil to make a DIY spider repellent spray. While the peppermint oil in this set does smell similar to the other one I have, I don't think it's as strong.Out of the entire set, I really like grapefruit and sweet orange. The cinnamon, peppermint, eucalyptus, and lavender oils are also really nice. The lemon and lime oils are nice, but they are not very strong, so I don't know how well they'll work in the diffuser. The spearmint is decent, but a little off from what I was expecting. The lemongrass and rosemary oils are ok, but I'm not sure they're scents I really like. As I said before, the tea tree oil in this set is off and does not smell very good. The frankincense smells gross, and the clover bud oil was so bad that it made me gag the first time I smelled it. So overall, I did end up with a lot of oils I like.The first oils I tried diffusing were speaking and eucalyptus, each in a separate diffuser. As other people have noted, the oils are a little watery and can pour out of the tops pretty quickly, so you have to be careful. The scents started off really nice, but they wore off quickly, as another reviewer wrote. I also don't think the vapor was as strong as it could have been. I used my Now peppermint oil the day before to test out my diffusers, and is definitely think it produced a stronger smelling vapor.As for the packaging, many of my bottles appear to be leaky after opening them. They aren't leaky in the sense that I have oil running down the bottles if I turn them over, but it seems like the oils collect in the cap which then leaks when they are opened. I've included a picture of my sweet orange oil where you can see all the oil in the cap, and my grapefruit oil showing some of the oil that had leaked onto the ring from the cap. Because the bottles leak, you end up getting oil on your hands, and the bottles smell strongly of essential oils. Because of this, I have to wash my hands and move the bottles away from where I'm diffusing to prevent the smell of the leaked oils from interfering with the ones I am diffusing. You should also note how small these bottles are. I was expecting them to be about this size, but it looks like some other reviewers were not. For reference, I included my other peppermint oil, which seems to be a standard size for essential oils, in one of the pictures.Overall, I am not terribly disappointed in this purchase. I bought this to figure out which scents I like, and it has served that purpose. While the oils do not seem to be the best quality, and the bottles could be improved so that they don't leak, $20 for 14 essential oils really isn't a bad deal. I definitely would recommend this to someone like me that is new to essential oils and wants to test different scents. If you are an experienced essential oil user, I would suggest that you spend a few more dollars on better quality oils, especially if you know exactly which scents you like.