Cresco has improved their oil tank and moved away from the plastic wick tanks that they started with. The new style cartridge is excellent. Gumbo is a heavy indica that gives a great heady buzz with a relaxing sensation for the body. I have not had any Cresco oil products for several months, and I am happy to see that the quality, flavor, and potency of the oil is still excellent. The flavor is piney with an herbal finish that reminds me of sage, the only drawback is that the oil is a bit harsh and brackish as compared to lighter tinted oils that I have tried.. The flow and saturation are both excellent; easy-to-pull giant clouds are possible even with low temperature settings. I am eager to try all of the oils, and I am very pleased that Cresco has upgraded these items.