I've only used a very small selection of FOs from there. I'm about 20 minutes from them and dropped in to pick up a sample of their ultrawax. I grabbed 2oz samples of Amber, Apple Cinnamon and Nag Champa. All three were pretty consistent in strength. Both CT and HT was good in candles and they also worked well in reed diffusers. On the flip-side I didn't really care much for the fragrances themselves. I've found nicer versions of the same fragrances elsewhere.
Based on the strength, I'd be tempted to try more of their fragrances, but it would be good to hear some more reviews before committing.