I've had several flavors of the om vapors now all with wta added and so far the flavors are good, my only issue is it seems a little more on the nic side than the other minor alkaloids, I prefer mothers milk wta and it's become my favorite but for the price you can't beat om vapors, I'm sure umba vape will be along the same lines because they probably use the same extraction process. It seems like mothers milk has the most unique extraction process and gets more of the minor alkaloids but it is more expensive.