I bought several FO's from them during their big sale recently and I've had a few problems. Here is what I've used and my results:
Vanilla - smells great, used in HP soap, will discolor brown, so try to use a vanillen stabilizer if you don't want this to happen or to decrease the affects.
Mango Madness - Oh my lands, I almost got soap on stick wth this! lol...so add the FO to your oils prior to adding lye solution and move VERY quickly, it will rice, so beat the heck out of it with your stick blender, or just plop it in the mold, or just HP it. AND, it stinks to high heavens in soap, even my husband about gagged. I would probably use a full water amount, and have some hot water in your tea kettle ready, just in case.
Chocolate - I knew this would probably accelerate fast on me, so I added it to my oils prior to adding my lye solution, and it will move fast and begin to rice on you. Smells like a fudge brownie.
Clean cotton - I use this for my laundry detergent using the no shred method (I found here on the forum) and it doesn't smell great in the detergent or from the bottle, but my clothes smell wonderful coming out of the dryer.
watermelon - this smells nice, first used in cp, without any problems except my soap overheated in the mold, but I'm not sure if this was cause by the FO or my recipe.
I have contacted Essential Depot regarding the problems I have had with the mango and chocolate (seems I've had soap gremlins set up residence in my kitchen this past week, boo!) and their customer service has been REALLY, REALLY slowwwwwwww. I get their lye and palm oil and am very happy with them. But I think I won't do their FO's anymore. I still have coconut, lily of the valley, pear fantasy, and sun & sand to test.
Hope you've had better results than me