I was skeptical at first because of the reviews but I'm glad I gave it a try. I was using CD12's in my 464 per the wick guide suggestion but decided to give this wick a try. I wasn't happy with the larger flame and the deep melt pool I was getting with the CD12. When I first lit the wick I was a little worried because my candle had a sinkhole that I left in it on purpose. I wanted to see how the wick handled itself. I wanted to see if it would continue to burn or put itself out. Luckily it did burn through to a complete melt pool because I had not cut the wick short yet. Because the Eco's tend to curl over a bit, if I would have cut it short then the candle wouldn't have burned properly. I did notice that the scent throw was a little weak at first on the complete burn but once I lit it again to do another burn the throw was just as strong as it was with my CD12 with ALOT less mushrooming. For me, the longer I let it burn the better it seems to behave. The flame does not get as high as the CD12 and it had hardly any mushrooming so that's a plus for me. If you'll let it achieve a full melt pool, which usually takes at least 4 hours because the ECO does not burn as fast, then you should be able to pick up a better scent throw with each burn. Every fragrance oil will behave differently though I would assume. So far I've only tested it in one of my candles but will test them all completely before selling to my customers.