I've tried a few of them in tarts and was not impressed. I used the SOS grade at 10% and none were strong enough to consider using. I was very disappointed. I did not think most of them smelled like scentsy scents at all. Here is my opinion on a few I tried: Spiced grapefruit - nice scent, liked this one, but not strong enough. I think this was close to scentsy Winter Wonderland - my favorite one of the group, smelled close to scentsy, minty fresh Tropical twist - horrible, had to throw away. Nothing like scentsy. You go girl and flirtaious - not very close to scentsy White tea and cactus - ok fresh scent, but not a scentsy dupe Guava nectar - yuck, throw away!!! Maybe if you use the more concentrated fos you will have more success than I.